Staff

• Chief of Staff and Inspector Gneeral: Colonel R.H. Chilton
• Chief of Artillery: Brigadier General William N. Pendleton
• Chief of Engineers (acting): Major General Isaac R. Trimble (wounded July 3rd)
• Chief of Ordnance: Lieutenant Colonel Briscoe G. Baldwin
• Chief of Commissary: Lieutenant Colonel Robert G. Cole
• Chief Quartermaster: Lieutenant Colonel James L. Corley
• Judge Advocate General: Major H.E. Young
• Military Secretary and acting Assistant Chief of Artillery: Colonel Armistead L. Long
• Aide-de-camp and Assistant Military Secretary: Major Charles Marshall
• Aide-de-camp and Assistant Inspector General: Major Charles S. Venable
• Staff Engineer: Captain Samuel R. Johnston
• Medical Director: Dr. Lafayette Guild
• Medical inspector: Surgeon R.J. Breckinridge

Headquarters units

• Escort: 39th Virginia Cavalry, Companies A and C: Major John H. Richardson
• Company A: Captain Augustus P. Pifer
• Company C: Captain Samuel B. Brown

First Corps

Lieutenant General James Longstreet

Corps staff

• Adjutant general: Lieutenant Colonel Mosley Sorrell, Major John Fairfax
• Chief quartermaster: Major John D. Keily, Jr.
• Medical director: Dr. John S.D. Cullen
• Signal officer: Captain Jacob H. Manning
• Aides: Captain T.J. Goree

McLaws's Division

Major General Lafayette McLaws

Divisional staff

• Divisional quartermaster: Major Abram H. McLaws
• Chief surgeon: Dr. Frank W. Patterson

Kershaw's Brigade

Brigadier General Joseph B. Kershaw

• 2nd South Carolina Infantry: Colonel John D. Kennedy (wounded), Lieutenant Colonel F. Gaillard
• 3rd South Carolina Infantry: Major Robert C. Maffett
• 7th South Carolina Infantry, companies A-M: Colonel David W. Aiken
• 8th South Carolina Infantry, companies A-M: Colonel John W. Henangan
• 15th South Carolina Infantry: Colonel William D. De Saussure (mortally wounded), Major William M. Gist
• 3rd South Carolina Infantry Battalion, companies A-G: Lieutenant Colonel William G. Rice

Semmes's Brigade

Brigadier General Paul J. Semmes (mortally wounded July 2nd)

Colonel Goode Bryan

• 10th Georgia Infantry: Colonel John B. Weems (wounded), Lieutenant Colonel Willis C. Holt
• 50th Georgia Infantry: Colonel William R. Manning
• 51st Georgia Infantry: Colonel Edward Ball
• 53rd Georgia Infantry: Colonel James P. Simms

Barksdale's Brigade

Brigadier General William Barksdale (mortally wounded and captured July 2nd)

Colonel Benjamin G. Humphreys

• 13th Mississippi Infantry: Colonel James W. Carter (killed), Lieutenant Colonel Kennon McElroy (wounded), Major John M. Bradley (mortally wounded), Lieutenant Absalom H. Farrar (wounded and captured)
• 17th Mississippi Infantry: Colonel Weillaim D. Holder (wounded), Lieutenant Colonel John C. Fiser (wounded), Major Andrew J. Pulliam (wounded and captured), Major Richard E. Jones (killed), Captain Gwen R. Cherry
• 18th Mississippi Infantry: Colonel Thomas M. Griffin (wounded), Lieutenant Colonel William H. Luse (captured), Major George B. Gerald
• 21st Mississippi Infantry, companies A, C-L: Colonel Benjamin G. Humphreys, Major Daniel N. Moody

Wofford's Brigade

Brigadier General William T. Wofford

• 16th Georgia Infantry: Colonel Goode Bryan
• 18th Georgia Infantry: Lieutenant Colonel Solon Z. Ruff
• 24th Georgia Infantry: Colonel Robert McMillan
• Cobb's (Georgia) Legion, companies A-G: Lieutenant Colonel Luther J. Glenn
• Philips (Georgia) Legion, companies A-F, L, M, and O: Lieutenant Colonel Elihu S. Barclay
• 3rd Georgia Sharpshooters Battalion: Lieutenant Colonel Nathan L. Hutchins, Jr.

Divisional Artillery

Colonel Henry G. Cabell

• Battery A, 1st North Carolina Artillery (two Napoleons, two 3-inch Ordnance Rifles): Captain B.C. Manly
• Pulaski Artillery (Georgia) (two 3-inch Ordnance Rifles, two 10-pounder Parrotts): Captian John C. Fraser (mortally wounded), Lieutenant W.J. Furlong
• 1st Richmond Howitzers (two Napoleons, two 3-inch Ordnance Rifles): Captainn E.S. McCarthy (mortally wounded), Lieutenant Robert M. Anderson
• Troop County Artillery (Georgia) (two 12-pounder Howitzers, two 10-pounder Parrotts): Captain Henry H. Carlton (wounded), Lieutenant Columbus W. Motes

Hood's Division

Major General John B. Hood (wounded July 2nd)

Brigadier General Evander McI. Law

Divisional staff

• Divisional quartermaster: Major Moses B. George
• Chief surgeon: Dr. John T. Darby
• Signal officer: Lieutenant Eli Duvall
• Assistant signal officer: Sergeant Buchanan

Law's Brigade

Brigadier General Evander McI. Law

Colonel James L. Sheffield

• 4th Alabama Infantry: Lieutenant Colonel Lawrence H. Scruggs
• 15th Alabama Infantry: Colonel William C. Oates
• 44th Alabama Infantry: Colonel William F. Perry
• 47th Alabama Infantry: Colonel James W. Jackson, Lieutenant Colonel M.J. Bugler (wounded and captured), Major James McD. Campbell
• 48th Alabama Infantry: Colonel James Lawrence Sheffield, Lieutenant Colonel William McT. Hardwick (wounded), Major Major Columbus B. St. John (wounded), Captain Jeremiah Edwards (captured), Captain Thomas J. Eubanks (wounded), Lieutenant Francis M. Burk

Texas Brigade

Brigadier General Jerome B. Robertson (wounded July 2nd)

Colonel Philip A. Work

• 3rd Arkansas Infantry: Colonel Van H. Manning (wounded), Lieutenant Colonel R.S. Taylor
• 1st Texas Infantry, companies A-M: Colonel Philip A. Work, Major Frederick S. Bass
• 4th Texas Infantry: Colonel John C.G. Key (wounded), Lieutenat Colonel Benjamin F. Carter (mortally wounded), Major John P. Bane
• 5th Texas Infantry: Colonel Robert M. Powell (wounded and captured), Lieutenant Colonel Kindallis Bryan (wounded), Major Jefferson C. Rogers

Anderson's Brigade

Brigadier General George T. Anderson (wounded July 2nd)

Lieutenant Colonel William Luffman (wounded)

Colonel William W. White

• 7th Georgia Infantry
• 8th Georgia Infantry
• 9th Georgia Infantry, companies B-K: Lieutenant Colonel John C. Mounger (killed July 2nd), Major William M. Jones (wounded July 2nd), Captain George Hillyer
• 11th Georgia Infantry
• 59th Georgia infantry

Benning's Brigade

Brigaider General Henry L. Benning

• Brigade staff
• Assistant quartermaster: Major Edgeworth Bird
• Chief comissary of subsistence: Major Walter S. Ballard
• 2nd Georgia Infantry
• 15th Georgia Infantry
• 17th Georgia Infantry
• 20th Georgia Infantry

Divisional Artillery

Major Mathias W. Henry

Major John C. Haskell

• Rowan Artillery (Battery D, 1st North Carolina Artillery) (two 12 pound Napoleons, two 10 pound Parrotts, two 3 inch rifles): Captain James Reilly
• Branch's Artillery (Battery F, 3rd or 13th North Carolina Artillery Battalion) (one 6 pound howitzer, one 12 pound howitzer, three 12 pound Napoleons): Captain Alexander C. Latham
• Palmetto Light Artillery (South Carolina): Captain Hugh R. Garden
• Rowan Artillery (North Carolina): Captain James Reilly

Pickett's Division

Major General George E. Pickett

Divisional staff

• Divisional quartermaster: Major Robert T. Scott
• Chief surgeon: Dr. Magnus Lewis

Garnett's Brigade

Brigadier General Richard B. Garnett (killed July 3rd)

Major C.S. Peyton

• 8th Virginia Infantry: Colonel Eppa Hunton (wounded July 3rd), Lieutenant Colonel Norborne Berkeley (wounded and captured July 3rd), Major Edmund Berkeley (wounded July 3rd)
• 18th Virginia Infantry: Lieutenant Colonel H.A. Carrington (wounded and captured July 3rd)
• 19th Virginia Infantry: Colonel Henry Canatt (wounded July 3rd), Lieutenant Colonel John T. Ellis (mortally wounded July 3rd), Major Charles S. Peyton
• 28th Virginia Infantry, companies A-G, I-K: Colonel Robert C. Allen (killed July 3rd), Lieutenant Colonel William Watts
• 56th Virginia Infantry: Colonel W.D. Stuart (mortally wounded July 3rd), Lieutenant Colonel P.P. Slaughter

Kemper's Brigade

Brigadier General James L. Kemper (wounded and captured July 3rd)

Colonel Joseph C. Mayo, Jr. (wounded July 3rd)

Colonel William R. Terry

• 1st Virginia Infantry, companies B-D, G-I: Colonel Lewis H. Langley (killed July 3rd), Lieutenant Colonel Francis G. Skinner
• 3rd Virginia Infantry: Colonel Joseph Mayor, Jr., Lieutenant Colonel A.D. Callcote (killed July 3rd), Major William H. Pryor
• 7th Virginia Infantry, companies A-G, I-K: Colonel Waller T. Patton (mortally wounded and captured July 3rd), Lieutenant Colonel C.C. Flowerree
• 11th Virginia Infantry: Major Kirkwood Otey (wounded July 3rd), Captain James R. Hutter (wounded and captured July 3rd), Captain John H. Smith (wounded July 3rd), Captain Albert W. Douthat
• 24th Virginia Infantry: Colonel William R. Terry (wounded July 3rd), Major Joseph A. Hambrick (wounded July 3rd), Captain William N. Bentley

Armistead's Brigade

Brigadier General Lewis A. Armistead (mortally wounded and captured July 3rd)

Lieutenant Colonel William White (wounded July 3rd)

Major Joseph R. Cabell

Colonel William R. Aylett (assigned to command July 4th)

• 9th Virginia Infantry, companies A-G, I-K: Major John C. Owens (mortally wounded July 3rd), Captain James J. Phillips
• 14th Virginia Infantry: Colonel James G. Hodes, Lieutenant Colonel William White
• 38th Virginia Infantry: Colonel E.C. Edmonds
• 53rd Virginia Infantry: Colone. W.R. Aylett
• 57th Virginia Infantry: Colonel John Bowie Maruder

Divisional Artillery

Major James Dearing

• Fauquier Artillery (Virginia) (six Napoleons): Captain R.M. Stibling
• Hampden Artillery (Virginia) (four Napoleons): Captain W.H. Caskie
• Richmond Fayette Artillery (Virginia) (two Napoleons, two 10-pounder Parrotts): Captain M.C. Macon
• Lynchburg Artillery (Virginia) (two 20-ponder Parrotts, one 3-inch Rifle, one 10-pounder Parrott): Captain Joseph G. Blount

First Corps Artillery Reserve

Colonel James B. Walton

Alexander's Battalion

Colonel E. Porter Alexander

• Ashland Artillery (Virginia) (two Napoleons, two 20-pounder Parrotts): Captain Pichegru Wollfolk, Jr.
• Bedford Artillery (Virginia) (four 3-inch Rifles): Captain Tyler C. Jordan
• Brooks Artillery (South Carolina) (four 12-pounder howitzers): Lieutenant S.C. Gilbert
• Madison Light Artillery (Louisiana) (four 24-pounder howitzers): Captain George V. Moody
• Parker's Battery (Virginia) ((three 3-inch Rifles, one 10-pounder Parrott): Captain William W. Parker
• Bath Artillery (Virginia) (four Napoleons): Captain O.B. Taylor

Washington Artillery Battalion (Louisiana)

Major Benjamin E. Eshleman

• 1st Company (one Napoleon): Captain Charles W. Squires
• 2nd Company (one 12-pounder howitzer, two Napoleons): Captain John B. Richardson
• 3rd Company (three Napoleons): Captain Merritt B. Miller
• 4th Company (two Napoleons, one 12-pounder howitzer): Captain Joseph Norcom

Second Corps

Lieutenant General Richard S. Ewell

Headquarters units

• Escort: 39th Virginia Cavalry, Company C: Captain William F. Randolph

Corps staff

• Adjutant general: Lieutenant Colonel Alexander S. Pendleton
• Chief Quartermaster: Major John A. Harman
• Medical Director: Dr. Hunter H. McGuire
• Signal officer: Captain Richard E. Wilbourn

Early's Division

Major General Jubal A. Early

Divisional staff

• Inspector general: Major Samuel Hale
• Divisional quartermaster: Major Charles E. Snodgrass
• Commissionary officer: Captain William Thornston
• Chief surgeon: Dr. Samuel B. Morrison

Hays's Brigade

Brigadier General Harry T. Hays

• 5th Louisiana Infantry: Major Alexander Hart, Captain T.H. Biscoe
• 6th Louisiana Infantry: Lieutenant Colonel Joseph Hankin
• 7th Louisiana Infantry: Colonel D.B. Penn
• 8th Louisiana Infantry: Colonel T.D. Lewis (killed), Lieutenant Colonel A. de Blanc (wounded), Major G.A. Lester
• 9th Louisiana Infantry, companies A-I: Colonel Leroy A. Stafford

Smith's Brigade

Brigadier General William Smith

• 31st Virginia Infantry: Colonel John S. Hoffman
• 49th Virginia Infantry, companies A-F, H-K: Lieutenant Colonel J. Catlett Gibson
• 52nd Virginia Infantry: Lieutenant Colonel James H. Skinner (wounded), Lieutenant Colonel John D. Ross

Hoke's Brigade

Colonel Isaac E. Avery, 6th North Carolina Infantry (mortally wounded July 2nd)

Colonel Archibald C. Godwin, 57th North Carolina Infantry

• 6th North Carolina Infantry: Major S. McD. Tate
• 21st North Carolina Infantry, companies A, C, D, and F-M: Colonel W.W. Kirkland
• 57th North Carolina Infantry: Colonel A.C. Godwin

Gordon's Brigade

Brigadier General John B. Gordon

• 13th Goergia Infantry: Colonel James M. Smith
• 26th Georgia Infantry: Colonel E.N. Atkinson
• 31st Georgia Infantry: Colonel Clement A. Evans
• 38th Georgia Infantry: Captain William L. McLeod
• 60th Georgia Infantry: Captain W.B. Jones
• 61st Georgia Infantry: Colonel John H. Lamar

Divisional Artillery

Lieutenant Colonel H.P. Jones

• Charlottesville Artillery (Virginia) (four Napoelons): Captain James McD. Carrington
• Curtney Artillery (Virginia) (four 3-inch Rifles): Captain William A. Tanner
• Louisiana Guard Artillery (two 3-inch rifles, two 10-pounder Parrotts): Captain Charles A. Green
• Staunton Artillery (Virginia) (four Napoleons): Captain Asher W. Garber

Rodes's Division

Major General Robert E. Rodes

Divisional staff

• Divisonal quartermaster: Major John D. Rogers
• Chief surgeon: Dr. W.S. Mitchell

Daniel's Brigade

Brigadier General Junius Daniel

• Brigade staff
• Chief surgeon: Dr. Frank Patterson, 2nd North Carolina Infantry Battalion
• 32nd North Carolina Infantry, companies A, B, and D-K: Colonel E.C. Brabble
• 43rd North Carolina Infantry: Colonel Thomas S. Kenan (wounded July 3rd)
• 45th North Carolina Infantry (eight companies): Lieutenant Colonel S.H. Boyd (wounded and captured), Major John R. Winston (wounded and captured), Captain A.H. Galloway (wounded), Captain J.A. Hopkins
• 53rd North Carolna Infantry, companies A, B, and D-K: Colonel W.A. Owens
• 2nd North Carolina Infantry Battalion, companies A, B, and D-H: Lieutenant Colonel H.L. Andrews (killed), Major John M. Hancock (wounded and captured), Captain Van Brown

Doles's Brigade

Brigadier General George Doles

• 4th Georgia Infantry: Lieutenant Colonel D.R.E. Winn (killed), Major W.H. Willis
• 12th Georgia Infantry: Colonel Edward Willis
• 21st Georgia Infantry (nine companies): Colonel John T. Mercer
• 44th Georgia Infantry: Colonel S.P. Lumpkin, Major W.H. Peebles

Iverson's Brigade

Brigadier General Alfred Iverson

• Brigade staff
• Chief surgeon: Dr. Simon Branch, 23rd North Carolina Infantry
• 5th North Carolina Infantry: Captain Speight B. West, Captain Benjamin Robinson
• 12th North Carolina Infantry: Lieutenant Colonel W.S. Davis
• 20th North Carolina Infantry: Lieutenant Colonel Nelson Slough
• 23rd North Carolina Infantry: Colonel D.H. Christie (mortally wounded July 1st), Lieutenant Colonel Robert D. Johnston (wounded July 1st), Captain William H. Johnson

Ramseur's Brigade

Brigadier General Stephen D. Ramseur

• 2nd North Carolina Infantry: Major D.W. Hurtt (wounded), Captain James T. Scales
• 4th North Carolina Infantry: Colonel Bryan Grimes
• 14th North Carolina Infantry: Colonel R. Tyler Bennett (wounded), Major Joseph H. Lambeth
• 30th North Carolin Infantry: Colonel Francis M. Parker (wounded), Major William W. Sillers

O'Neal's Brigade

Colonel Edward A. O'Neal

• Brigade staff
• Brigade quartermaster: Major James C. Bryan
• Chief surgeon: Dr. John M. Hayes, 26th Alabama Infantry
• 3rd Alabama Infantry, companies A-L: Colonel C.A. Battle
• 5th Alabama Infantry: Colonel J.M. Hall
• 6th Alabama Infantry (twelve companies): Colonel J.N. Lightfoot (wounded), Captain M.L. Bowie
• 12th Alabama Infantry: Colonel S.B. Pickens
• 26th Alabama Infantry: Lieutenant Colonel John C. Goodgame

Divisional Artillery

Lieutenant Colonel Thomas H. Carter

• Jeff Davis Artillery (Alabama) (four 3 inch rifles): Captain W.J. Reese
• King William Artillery (Virginia) (two 12 pound Napoleons, two 10 pound Parrotts): Captain W.P. Carter
• Morris Artillery (Virginia) (four 12 pound Napoleons: Captain R.C.M. Page
• Orange Artillery (Virginia) (two 3 inch rifles, two 10 pound Parrotts: Captain C.W. Fry

Johnson's Division

Major General Edward Johnson

Divisional staff

• Chief of stafF: Major Benjamin W. Leigh (killed July 3rd)
• Assistant Adjutant General: Major Henry K. Douglas (wounded July 3rd)
• Divisional quartermaster: Major George D. Mercer
• Chief surgeon: Dr. Robert T. Coleman

Steuart's Brigade

Brigadier General George H. Steuart

• 1st Maryland Infantry Battalion, companies A-G: Lieutenant Colonel James R. Herbert (wounded), Major William C. Goldsborough (wounded and captured), Captain John W. Torsch
• 1st North Carolina Infantry: Lieutenant Colonel H.A. Brown
• 3rd North Carolina Infantry: Major W.M. Parsley
• 10th Virginia Infantry, companies A-L: Colonel Edward T.H. Warren
• 23rd Virginia Infantry: Lieutenant Colonel S.T. Walton
• 37th Virginia Infantry, companies A-F, G-K: Major Henry C. Wood

Nicholl's Brigade

Colonel Jesse M. Williams

• 1st Louisiana Infantry, companies A-G, I, and K: Lieutenant Colonel Michael Nolan
• 2nd Louisiana Infantry: Lieutenant Colonel R.E. Burke
• 10th Louisiana Infantry: Major T.M. Powell
• 14th Louisiana Infantry: Lieutenant Colonel David Zable
• 15th Louisiana Infantry: Major Andrew Brady

Stonewall Brigade

Brigadier General James A. Walker

• Brigade staff:
• brigade surgeon: Dr. Bushrod Taylor
• 2nd Virginia Infantry: Colonel J.Q.A. Nadenbausch
• 4th Virginia Infantry, companies A-I and L: Major Williams Terry
• 5th Virginia Infantry, companies A and C-L: Lieutenant Colonel Hazael J. Williams, Jr. (wounded), Major James W. Newton
• 27th Virginia Infantry, companies B-H: Lieutenant Colonel Daniel M. Shriver
• 37th Virginia Infantry: Captain J.B. Golladay

Jones's Brigade

Brigadier General John M. Jones (wounded)

Lieutenant Colonel R.H. Dungan

• 21st Virginia Infantry, companies A and C-K: Colonel William P. Moseley
• 25th Virginia Infantry: Colonel J.C. Higinbotham, Lieutenant Colonel J.A. Robinson
• 42nd Virginia Infantry: Lieutenant Colonel R.W. Withers, Captain S.H. Saunders
• 44th Virginia Infantry, companies B-K: Major Norvell Cobb (wounded), Captain Thomas R. Buckner
• 48th Virginia Infantry: Lieutenant Colonel R.H. Dungan, Major Oscar White
• 50th Virginia Infantry: Colonel L.H.N. Salyer

Divisional Artillery

Major J.W. Latimer (mortally wounded July 2nd)

Captain Charles I. Raine

• 1st Maryland Battery (four Napoleons): Captain William F. Dement
• Alleghany Artillery (Virginia) (two Napoleons, two 3-inch Rifles): Captain John C. Carpenter
• Chesapeake Artillery (Maryland) (four 10-pounder Parrotts): Captain William D. Brown
• Lee Battery (Virginia) (one 3-inch Rifle, one 10-pounder Parrott, two 20-pounder Parrotts): Captain Charles I. Raine

Second Corps Artillery Reserve

Colonel J. Thompson Brown

1st Virginia Artillery Battalion

Captain Willis J. Dance

• 2nd Richmond Howitzers (Virginia) (four 10-pounder Parrotts): Captain David Watson
• 3rd Richmond Howitzers (Virginia) (four 3-inch Rifles): Captain Benjamin H. Smith, Jr.
• Powhatan Artillery (Virginia) (four 3-inch Rifles): Lieutenant John M. Cunningham
• Rockbridge Artillery (Virginia) (four 20-pounder Parrotts): Captain Archibald Graham
• Salem Artillery (Virginia) (two Napoleons, two 3-inch Rifles): Lieutenant Charles B. Griffin

Nelson's Artillery Battalion

Lieutenant Colonel William Nelson

• Amherst Artillery (Virginia) (three Napoleons, one 3-inch Rifle): Captain Thomas J. Kirkpatrick
• Fluvanna Artillery (Virginia) (three Napoloens, one 3-inch Rifle): Captain John L. Massie
• Georgia Regular Battery (two 3-inch Rifles, one 10-pounder Parrott): Captain John Millidge, Jr.

Third Corps

Lieutenant General A.P. Hill

Corps staff

• Chief quartermaster: Major James G. Field
• Signal officer: Captain Richard H.T. Adams
• Chief surgeon: Dr. John W. Powell

Heth's Division

Major General Henry Heth (wounded July 1st)

Brigadier General James J. Pettigrew (wounded July 3rd but remained in command)

Divisional staff

• Divisional quartermaster: Major Alexander W. Vick
• Chief surgeon: Dr. Henry H. Hubbard

Third Brigade

Brigadier General James Archer (captured July 1st)

Colonel B.D. Fry

• Brigade staff:
• Assistant adjutant general: Captain Robert H. Archer
• Acting inspector general: Captain George A. Williams
• 13th Alabama Infantry: Colonel B.D. Fry
• 5th Alabama Infantry Battalion (four companies): Major A.S. Van deGraaff
• 1st Tennessee Infantry (Provisional Army): Major Felix G. Buchanan
• 7th Tennessee Infantry: Lieutenant Colonel S.G. Shepard
• 14th Tenneesse Infantry: Captain B.L. Philips

Fourth Brigade

Brigadier General Joseph Davis

• 2nd Mississippi Infantry: Colonel J.M. Stone (wounded July 1st)
• 11th Mississippi Infantry: Colonel F.M. Green
• 42nd Mississippi Infantry: Colonel H.R. Miller
• 55th North Carolina Infantry: Colonel J.K. Connally (wounded July 1st)

First Brigade

Brigadier General James J. Pettigrew

Colonel J.K. Marshall

• Brigade staff:
• Assistant adjutant general: Captain Nicholas C. Hughes
• 11th North Carolina Infantry: Colonel Collett Leventhorpe
• 26th North Carolina Infantry: Colonel Henry K. Burgwyn, Jr. (mortally wounded July 1st), Lieutenant Colonel James R. Lane (wounded July 1st), Captain H.C. Albright
• 47th North Carolina Infantry: Colonel G.H. Faribault
• 52nd North Carolina Infantry: Colonel J.K. Marshall

Second Brigade

Colonel J.M. Brockenbrough

• 40th Virginia Infantry: Captain T.E. Betts, Captain R.B. Davis
• 47th Virginia Infantry (nine companies): Colonel Robert M. Mayo
• 55th Virginia Infantry (eleven companies): Colonel W.S. Christian
• 22nd Virginia Battalion (six companies): Major John S. Bowles

Divisional Artillery

Lieutenant Colonel John J. Garnett

• Donaldsonville Artillery (Louisiana): Captain V. Maurin
• Huger Artillery (Virginia): Captain Joseph D. Moore
• Lewis Artillery (Virginia): Captain John W. Lewis
• Norfolk Light Artillery Blues (Virginia): Captain C.R. Grandy

Pender's Divison

Major General William D. Pender (mortally wounded July 2nd)

Brigadier General James H. Lane

Major General Isaac R. Trimble (wounded and captured July 3rd)

Brigadier General James H. Lane

Divisional staff

• Divisional quartermaster: Major Nathaniel E. Scales
• Chief commisssary of subsistence: Major D.T. Carraway
• Chief surgeon: Dr. Pleasant A. Holt

1st Brigade

Colonel Abner M. Perrin

• 1st South Carolina Infantry (Provisional Army): Major C.W. McCreary
• 1st South Carolina Rifles: Captain William M. Hadden
• 12th South Carolina Infantry: Colonel John L. Miller
• 13th South Carolina Infantry: Lieutenant Colonel B.T. Brockman
• 14th South Carolina Infantry: Lieutenant Colonel Joseph N. Brown

2nd Brigade

Brigadier General James H. Lane

Colonel Clarke M. Avery

• 7th North Carolina Infantry: Captain J.McL. Turner
• 18th North Carolina Infantry: Colonel D. Barry
• 28th North Carolina Infantry: Colonel S.D. Lowe
• 33rd North Carolina Infantry: Colonel C.M. Avery
• 37th North Carolina Infantry: Colonel W.M. Barbour

3rd Brigade

Brigadier General Edward Thomas

• 14th Georgia Infantry
• 35th Georgia Infantry
• 45th Georgia Infantry
• 49th Georgia Infantry: Colonel S.T. Player

4th Brigade

Brigadier General Alfred M. Scales (wounded July 1st)

Colonel William L.J. Lowrance

• Brigade staff
• Chief quartermaster: Captain Charles D. Hall
• Chief surgeon: Dr. John H. McAden, 13th North Carolina Infantry
• 13th North Carolina Infantry: Colonel J.H. Hyman, Lieutenant Colonel H.A. Rogers
• 16th North Carolina Infantry: Captain L.W. Stowe
• 22nd North Carolina Infantry: Colonel James Conner
• 34th North Carolina Infantry: Colonel William L.J. Lowrance, Lieutenant Colonel G.T. Gordon
• 38th North Carolina Infantry: Colonel W.J. Hoke

Divisional Artillery

Major William T. Poague

• Albemarle Artillery (Virginia): Captain James W. Wyatt
• Charlotte Artillery (North Carolina): Captain Joseph Graham
• Madison Light Artillery (Mississippi): Captain George Ward
• Battery (Virginia): Captain J.V. Brooke

Anderson's Division

Major General Richard H. Anderson

Divisional staff

• Divisional quartermaster: Major James A. Johnston
• Chief surgeon: Dr. Henry DeS. Fraser

Wilcox's Brigade

Brigadier General Cadmus M. Wilcox

• 8th Alabama Infantry: Lieutenant Colonel Hilary A. Herbert
• 9th Alabama Infantry: Captain J.H. King
• 10th Alabama Infantry: Colonel William H. Forney, Lieutenant Colonel James E. Shelley
• 11th Alabama Infantry: Colonel J.C.C. Sanders, Lieutenant Colonel George E. Tayloe
• 14th Alabama Infantry: Colonel L. Pinckard, Lieutenant Colonel James A. Broome

Mahone's Brigade

Brigadier General William Mahone

• 6th Virginia Infantry: Colonel George T. Rogers
• 12th Virginia Infantry: Colonel D.A. Weisiger
• 16th Virginia Infantry: Colonel Joseph H. Ham
• 41st Virginia Infantry: Colonel William A. Parham
• 61st Virginia Infantry: Colonel V.D. Groner

Perry's Brigade

Colonel David Lang

• 2nd Florida Infantry: Major W.R. Moore
• 5th Florida Infantry: Captain R.N. Gardner
• 8th Florida Infantry: Colonel David Lang

Wright's Brigade

Brigadier General Ambrose Wright

• 3rd Georgia Infantry: Colonel E.J. Walker
• 23rd Georgia Infantry: Colonel Joseph Wasden, Captain B.C. McCurry
• 48th Georgia Infantry: Colonel William Gibson
• 2nd Georgia Infantry Battalion: Major George W. Ross, Captain Charls J. Moffett

Posey's Brigade

Brigadier General Carnot Posey

• 12th Mississippi Infantry: Colonel W.H. Taylor
• 16th Mississippi Infantry: Colonel Samuel E. Baker
• 19th Mississippi Infantry: Colonel Nathaniel H. Harris
• 48th Mississippi Infantry: Colonel Joseph M. Jayne

Division Artillery (11th Georgia Artillery Battalion/Sumpter Artillery)

Major John Lane

• Company A (three 10-pounder Parrotts, one 3-inch Navy Rifle, one Napoleon, one 12-pounder howitzer): Captain Hugh M. Ross
• Company B (four 12-pounder howitzers, two Napoleons): Captain George M. Patterson
• Company C (three 3-inch Navy Rifles, two 20-pounder Parrotts): Captain John T. Wingfield

Third Corps Artillery Reserve

Colonel R. Lindsay Walker

McIntosh's Artillery Battalion

Major David G. McIntosh

• Danville Artillery (Virginia): Captain R.S. Rice
• Hardaway Artillery (Virginia): Captain W.B. Hurt
• 2nd Rockbridge Artillery (Virginia): Lieutenant Samuel Wallace
• Battery (Virginia): Captain M. Johnson

Pegram's Artillery Battalion

Major William J. Pegram

• Crenshaw Battery (Virginia)
• Fredericksburg Artillery (Virginia): Captain E.A. Marye
• Letcher Artillery (Virginia): Captain T.A. Brander
• Pee Dee Artillery (South Carolina): Lieutenant William E. Zimmerman
• Purcell Artillery (Virginia): Captain Joseph McGraw

Cavalry Division

Major General J.E.B. Stuart

Divisional staff

• Chief quartermaster: Major Norman R. Fitzhugh

Hampton's Brigade

Brigadier General Wade Hampton (wounded July 3rd)

Colonel Lawrence S. Baker

• 1st North Carolna Cavalry: Colonel Lawrence S. Baker
• 1st South Carolina Cavalry
• 2nd South Carolina Cavalry
• Cobb's (Georgia) Legion: Colonel William G. Delony (wounded July 2nd)
• Jeff Davis (Mississippi) Legion
• Philips (Georgia) Legion

Fitzhugh Lee's Brigade

Brigadier General Fitzhugh Lee

Colonel Thomas T. Munford

• 1st Maryland Cavalry Battalion: Major Harry Gilmor
• 1st Virginia Cavalry: Colonel James H. Drake
• 2nd Virginia Cavalry: Colonel Thomas T. Munford
• 3rd Virginia Cavalry: Colonel Thomas H. Owen
• 4th Virginia Cavalry: Colonel Williams C. Wickham
• 5th Virginia Cavalry: Colonel T.L. Rosser

W.H.F. Lee's Brigade

Brigadier General W.H.F. Lee (wounded and captured)

Colonel John R. Chambliss, Jr.

• 2nd North Carolina Cavalry
• 9th Virginia Cavalry: Colonel R.L.T. Beale
• 10th Virginia Cavalry: Colonel J. Lucius Davis
• 13th Virginia Cavalry

Jenkin's Brigade

Brigaider General Albert G. Jenkins (wounded July 2nd)

Colonel Milton J. Ferguson

• 14th Virinia Cavalry:
• 16th Virginia Cavalry
• 17th Virginia Cavalry
• 34th Virginia Cavalry Battalion: Lieutenant Colonel V.A. Witcher
• 36th Virginia Cavalry Battalion
• Jackson's Battery (Virginia) (two 12-pounder howtizers, two 3-inch rifles): Captain Thomas E. Jackson

Robertson's Brigade

Brigadier General Beverly H. Robertson

• 4th North Carolina Cavalry: Colonel D.D. Ferebee
• 5th North Carolina Cavalry

Jones's Brigade

Brigadier General William E. Jones

• 6th Virginia Cavalry: Major C.E. Flournoy
• 7th Virginia Cavalry: Lieutenant Colonel Thomas Marshall
• 11th Virginia Cavalry: Colonel L.L. Lomax
• 35th Virginia Cavalry Battalion: Lieutenant Colonel Elijah V. White

Horse Artillery

Major Robert F. Beckham

• Breathed's Battery (Virginia) (four 3-inch Ordnance rifles): Captain James Breathed
• Chew's Battery (Virginia) (three 3-inch Ordnance rifles, one 12-pounder howitzer): Captain R.P. Chew
• Griffin's Battery (Maryland) (four 10-pounder Parrotts): Captain W.H. Griffin
• Hart's Battery (South Carolina) (three Blakely Rifles): Captain J.F. Hart
• McGregor's Battery (Virginia) (two 12-pounder Napoleons, two 3-inch Ordnance rifles): Captain W.M. McGregor
• Moorman's Battery (Virginia) (one 12-pounder Napoleon, two 3-inch Ordnance rifles, one 12-pounder howtizer): Captain M.N. Moorman

Imboden's command

(Reported directly to army headquarters)

Brigadier General John D. Imboden

• 18th Virginia Cavalry, companies A-K: Colonel George W. Imboden
• 62nd Virginia Mounted Infantry, companies A-M: Colonel George H. Smith
• McNeill's Company, Virginia Partisan Rangers: Captain John H. McNeill
• Staunton (Virginia) Horse Artillery (six 12-pound Napoleons): Captain John H. McClanahan

Staff

• Chief of Staff: Major General Daniel Butterfield (wounded)
• Chief of Engineers: Brigadier General Gouverneur K. Warren (wounded)
• Chief of Artillery: Brigadier General Henry J. Hunt (wounded)
• Provost Marshall General: Brigadier General Marsena R. Patrick
• Assistant Adjutant General: Brigadier General Seth Williams
• Chief Quartermaster: Brigadier General Rufus Ingalls
• Inspector General: Colonel Edmund Schriver
• Medical Director: Dr. Jonathan Letterman
• Medical inspector: Dr. John H. Taylor
• Chief of Ordnance: Lieutenant John R. Edie (acting)
• Signal Corps detachment: Captain Lemuel P. Norton

Headquarters units

• Provost Guard: Brigadier General Marsena R. Patrick
• 93rd New York Infantry: Colonel John S. Crocker
• 2nd Pennsylvania Cavalry: Colonel R. Butler Price
• 6th Pennsylvania Cavalry, companies E and I: Captain James Starr
• 8th U.S. Cavalry, companies A-G, I: Captain Edwin W.H. Read
• detachments from 1st, 2nd, 5th, and 6th U.S. Cavalry
• Headquarters guard
• Oneida Company, New York Cavalry: Captain Daniel P. Mann
• Engineer Brigade: Brigadier General Henry W. Benham
• 15th New York Engineers, companies A-C: Major Walter L. Cassin
• 50th New York Engineers: Colonel William H. Pettes
• U.S. Engineer Battalion: Captain George H. Mendell

I Corps

Major General John F. Reynolds (killed July 1st)

Major General Abner Doubleday (relieved of command July 1st)

Major General John Newton

Corps staff

• Chief quartermaster: Lieutenant Colonel James J. Dana
• Medical director: Surgeon J. Theodore Heard
• Signal officers: 1st Lieutenant J.C. Wiggins, 1st Lieutenant N.H. Camp

Headquarters units

• Escort: Company L, 1st Maine Cavalry: Captain Constantine Taylor

1st Division

Brigadier General James S. Wadsworth

1st Brigade

Brigadier General Solomon Meredith (wounded July 1st)

Colonel William W. Robertson

• 19th Indiana Infantry: Colonel Samuel J. Williams
• 24th Michigan Infantry: Colonel Henry A. Morrow (wounded), Captain Albert M. Edwards
• 2nd Wisconsin Infantry: Colonel Lucius Fairchild (wounded), Lieutenant Colonel George Stevens (killed), Major John Mansfield (wounded), Captain George H. Otis
• 6th Wisconsin Infantry: Lieutenant Colonel Rufus R. Dawes
• 7th Wisconsin Infantry: Colonel William W. Robertson, Lieutenant Colonel John B. Callis (wounded and captured), Major Make Finnicum

2nd Brigade

Brigadier General Lysander Cutler

• 7th Indiana Infantry: Colonel Ira G. Grover
• 76th New York Infantry: Major Andrew J. Grover (killed), Captain John E. Cook
• 84th New York Infantry: Colonel Edward B. Fowler
• 95th New York Infantry: Colonel George H. Biddle (wounded), Major Edward Pye
• 147th New York Infantry: Lieutenant Colonel Francis C. Miller (wounded), Major George Harney
• 56th Pennsylvania Infantry: Colonel J. William Hofmann

2nd Division

Brigadier General John C. Robinson

1st Brigade

Brigadier General Gabriel R. Paul (wounded July 1st)

Colonel Samuel H. Leonard (wounded July 1st)

Colonel Adrian R. Root (wounded and captured July 1st)

Colonel Richard Coulter (wounded July 1st)

Colonel Peter Lyle

• 16th Maine Infantry: Colonel Charles W. Tiden (captured), Major Archibald D. Leavitt
• 13th Massachusetts Infantry: Colonel Samuel H. Leonard (wounded), Lieutenant Colonel N. Walter Batchelder
• 94th New York Infantry: Colonel Adrian R. Root (wounded and captured), Major Samuel A. Moffett
• 104th New York Infantry: Colonel Bilbert G. Prey
• 107th Pennsylvania Infantry: Lieutenant Colonel James MacThomson (wounded), Captain Emanuel D. Roath

2nd Brigade

Brigadier General Henry Baxter

• 12th Massachusetts Infantry: Colonel James L. Bates (wounded), Lieutenant Colonel David Allen, Jr.
• 83rd New York Infantry: Lieutenant Colonel Joseph A. Moesch
• 97th New York Infantry: Colonel Charles Wheelock (wounded), Major Charles Northrup
• 11th Pennsylvania Infantry: Colonel Rihcard Coulter (wounded), Captain Benjamin F. Haines (wounded), Captain John B. Overmeyer
• 88th Pennsylvania Infantry: Major Benezet F. Foust (wounded), Captain Edmund A. Mass (wounded), Captain Henry Whiteside
• 90th Pennsylvania Infantry: Colonel Peter Lyle, Major Alfred J. Sellers

3rd Division

Major General Abner Doubleday

Brigadier General Thomas A. Rowley

Major General Abner Doubleday

Provost Guard

• 149th Pennsylvania Infantry, Company D

1st Brigade

Brigadier General Thomas A. Rowley

Colonel Chapman Biddle (wounded July 1st)

Brigadier General Thomas A. Rowley

• 80th New York Infantry: Colonel Theodore B. Gates
• 121st Pennsylvania Infantry: Colonel Chapman Biddle (wounded), Major Alexander Biddle
• 142nd Pennsylvania Infantry: Colonel Robert P. Cummins (mortally wounded), Lieutenant Colonel A.B. McCalmont
• 151st Pennsylvania Infantry: Lieutenant Colonel Geore F. McFarland (wounded), Captain Walter F. Owens

2nd Brigade

Colonel Roy Stone (wounded July 1st)

Colonel Langhorne Wister (wounded July 1st)

Colonel Edmund L. Dana

• 142nd Pennsylvania Infantry: Colonel Edmund L. Danas, Lieutenant Colonel John D. Musser
• 149th Pennsylvania Infantry, companies A-C, E-J: Lieutenant Colonel Walton Dwight (wounded July 1st), Captain James Glenn
• 150th Pennsylvania Infantry, companies A-I: Colonel Langhorne Wister (wounded July 1st), Lieutenant Colonel Henry S. Huidekoper (wounded July 1st), Captain Cornelius C. Widdis

3rd Brigade

Brigadier General George J. Stannard (wounded July 3rd)

Colonel Francis V. Randall

• 12th Vermont Infantry (detached as train guard): Colonel Asa P. Blunt
• 13th Vermont Infantry: Colonel Francis V. Randall, Lieutenant Colonel William D. Munson (wounded), Major Joseph J. Boynton
• 14th Vermont Infantry: Colonel William R. Nichols
• 15th Vermont Infantry (detached as train guard): Colonel Redfield Proctor
• 16th Vermont Infantry: Colonel Wheelock G. Veazey

Artillery Brigade

Colonel Charles S. Wainwright

• Battery B, Maine Light Artillery (six 3-inch Ordnance Rifles): Captain James A. Hall
• Battery E, Maine Light Artillery (six Napoleons); Captain Greenleaf T. Stevens (wounded), Lieutenant Edward N. Whittier
• Batteries E-L, 1st New York Light Artillery (six 3-inch Ordnance Rifles): Captain Gilbert H. Reynolds (wounded), Lieutenant George Breck
• Battery B, 1st Pennsylvania Light Artillery (four 3-inch Ordnance Rifles): Captain James H. Cooper
• Battery B, 4th U.S. Light Artillery (six Napoleons): Lieutenant James Stewart

II Corps

Major General Winfield S. Hancock (wounded July 3rd)

Brigadier General John Gibbon (wounded July 3rd)

Brigadier General William Hays

Corps staff

• Chief of staff: Lieutenant Colonel Charles Morgan
• Chief quartermaster: Lieutenant Colonel Richard N. Batchelder
• Medical director: Surgeon Alexander N. Dougherty
• Signal officer: Captain P.A. Taylor

Headquarters Units

• Escort
• Companies D and K, 6th New York Cavalry: Captain Riley Johnston
• Companies E and H, 17th Pennsylvania Cavalry
• Provost Guard
• Company L. 1st Minnesota Infantry

1st Division

Brigadier General John C. Caldwell

Provost Guard

Provost Marshal: Lieutenant William M. Hobart, 116th Pennsylvania Infantry

• Company B, 116th Pennsylvania Infantry
• Companies A, B, and K, 53rd Pennsylvania Infantry

1st Brigade

Colonel Edward E. Cross (mortally wounded July 2nd)

Colonel H. Boyd McKeen

• 5th New Hampshire Infantry: Lieutenant Colonel Charles E. Hapgood
• 61st New York Infantry: Colonel K. Oscar Broady
• 81st Pennsylvania Infantry: Colonel H. Boyd McKeen, Lieutenant Colonel Amos Stroh
• 148th Pennsylvania Infantry: Lieutenant Colonel Robert McFarlane

2nd Brigade (Irish Brigade)

Colonel Patrick Kelly

• 28th Massachusetts Infantry: Colonel R. Byrnes
• 63rd New York Infantry, companies A and B: Lieutenant Colonel Richard C. Bentley (wounded July 2nd), Captain Thomas Touhy
• 69th New York Infantry, companies A and B: Captain Richard Moroneyd (wounded), Lieutenant James J. Smith
• 88th New York Infantry, companies A and B: Captain Denis F. Burke
• 116th Pennsylvania Infantry, companies A, C, and D: Major St. Clair A. Mulholland

3rd Brigade

Brigadier General Samuel K. Zook (killed July 2nd)

Lieutenant Colonel Johnn Fraser

• 52nd New York Infantry: Lieutenant Colonel C.G. Freudenberg (wounded July 2nd), Captain William M. Scherrer
• attached to 52nd New York: detachment from 7th New York Infantry
• 57th New York Infantry: Lieutenant Colonel Alford B. Chapman
• 66th New York Infantry: Colonel Orlando H. Morris (wounded July 2nd), Lieutenant Colonel John S. Hammell (wounded July 2nd), Major Peter Nelson
• 140th Pennsylvania Infantry: Colonel Richard P. Roberts (killed July 2nd), Lieutenant Colonel John Fraser

4th Brigade

Colonel John R. Brooke (wounded July 2nd)

Colonel Hiram L. Brown

• 27th Conneticut Infantry, companies A and B: Lieutenant Colonel Henry C. Merwin (killed July 2nd), Major James H. Coburn
• 2nd Delaware Infantry: Colonel William P. Baily
• 64th New York Infantry: Colonel Daniel G. Bingham (wounded July 2nd), Major Leman W. Bradley
• 53rd Pennsylvania Infantry, Companies C-I, Lieutenant Colonel Richards McMichael
• 145th Pennsylvania Infantry: Colonel Hiram L. Brown (wounded), Captain John W. Reynolds (wounded July 2nd), Captain Moses Oliver

2nd Division

Brigadier General John Gibbon (wounded July 3rd)

Brigadier General William Harrow

Provost Guard

• Company C, 1st Minnesota Infantry

1st Brigade

Brigadier General William Harrow

Colonel Francis Heath

• 19th Maine Infantry: Colonel Francis E. Heath, Lieutenant Colonel Henry W. Cunningham
• 15th Massachusetts Infantry: Colonel George H. Ward (mortally wounded), Lieutenant Colonel George C. Joslin
• 1st Minnesota Infantry, companies A-B and D-K: Colonel William Colvill, Jr. (wounded July 2nd), Captain Nathan S. Messick (killed), Captain Henry C. Coates
• Attached: 1st Company, Minnesota Sharpshooters
• 82nd New York Infantry: Lieutenant Colonel James Huston (killed), Captain John Darrow

2nd Brigade (Philadelphia Brigade)

Brigadier General Alexander Webb (wounded July 3rd but remained in command)

• 69th Pennsylvania Infantry: Colonel Dennis O'Kane (mortally wounded July 3rd), Captain William Davis
• 71st Pennsylvania Infantry: Colonel Richard P. Smith
• 72nd Pennsylvania Infantry: Colonel DeWit C. Baxter (wounded July 2nd), Lieutenant Colonel Theodore Hesser
• 106th Pennsylvania Infantry: Lieutenant Colonel William L. Curry

3rd Brigade

Colonel Norman J. Hall

• 19th Massachusetts Infantry: Colonel Arthur F. Devereaux
• 20th Massachusetts Infantry: Colonel Paul J. Revere (mortally wounded), Lieutenant Colonel Geore N. Macy (wounded), Captain Henry L. Abbott
• 7th Michigan Infantry: Lieutentan Colonel Amos E. Steele, Jr. (killed), Major Sylvanus W. Curtis
• 42nd New York Infantry: Colonel James E. Mallon
• 59th New York Infantry: Lieutenant Colonel Max A. Thoman (mortally wounded), Captain William McFadden
• Attached: 1st Company Massachusetts Sharpshooters: Captain William Plumer

3rd Division

Brigadier General Alexander Hays

Provost Guard

• 10th New York Infantry Battalion (four companies): Major George F. Hopper

1st Brigade

Colonel Samuel S. Carroll

• 14th Indiana Infantry: Colonel John Coons
• 4th Ohio Infantry: Lieutenant Colonel Leonard W. Carpenter
• 8th Ohio Infantry: Lieutenant Colonel Franklin Sawyer
• 7th West Virginia Infantry: Lieutenant Colonel Jonathan H. Lockwood

2nd Brigade

Colonel Thomas A. Smyth (wounded July 2nd)

Lieutenant Colonel Francis C. Pierce

• 14th Connecticut Infantry: Major Theodore P. Harris
• 1st Delaware Infantry: Lieutenant Colonel Edward P. Harris (arrested for cowardice and removed from command July 2nd), Captain Thomas B. Hizar (wounded), Lieutenant William Smith (mortally wounded), Lieutenant John T. Dent
• 12th New Jersey Infantry: Major John T. Hill
• 108th New York Infantry: Lieutenant Colonel Francis E. Pierce

3rd Brigade

Colonel George L. Willard (killed July 2nd)

Colonel Eliakim Sherrill (mortally wounded)

Colonel Clinton D. MacDougall (wounded)

Lieutenant Colonel James M. Bull

• 39th New York Infantry: Major Hugo Hildebrandt
• 111th New York Infantry: Colonel Clinton D. MacDougall (wounded), Lieutenant Colonel Isaac M. Lusk (wounded), Captain Aaron B. Seely
• 125th New York Infantry: Leiutenant Colonel Levin Crandell
• 126th New York Infantry: Colonel Eliakim Sherrill (mortally wounded), Lieutenant Colonel James L. Bull, Captain William A. Coleman

Artillery Brigade

Captain John C. Hazard

• Battery B, 1st New York Light Artillery-14th Battery, New York Light Artillery (four 10-pounder Parrotts: Captain James M. Rorty (killed), Lieutenant Albert S. Sheldon (wounded), Lieutenant Robert E. Rogers
• Battery A, 1st Rhode Island Light Artillery (six 3-inch Ordnance Rifles): Captain William A. Arnold
• Battery B, 1st Rhode Island Light Artillery( six 3-inch Ordnance Rifles): Lieutenant T. Fred Brown (wounded), Lieutenant Walter S. Perrin
• Battery I, 1st U.S. Light Artillery (six Napoleons): Lieutenant George A. Woodruff (mortally wounded), Lieutenant Tully McCrea
• Battery A, 4th U.S. Artillery (six 3-inch Ordnance Rifles): Lieutenant Alonzo H. Cushing (killed July 3rd), Sergeant Frederick Fuger

III Corps

Major General Daniel E. Sickles (wounded July 2nd)

Major General David B. Birney

Corps staff

• Chief quartermaster: Lieutenant Colonel James F. Rusling
• Medical director: Surgeon Thomas Sim

Escort

• Company A, 6th New York Cavalry
• Companies F and K, 9th New York Cavalry: Captain Timothy Hanley (attached July 2nd only)

1st Division

Major General David B. Birney

Brigadier General J.H. Hobart Ward

1st Brigade

Brigadier General Charles K. Graham (wounded and captured July 2nd)

Colonel Andrew Tippin

• 57th Pennsylvania Infantry, companies A-C, E, F, H-K: Colonel Peter Sides (wounded), Captain Alanson H. Nelson
• 63rd Pennsylvania Infantry: Major John A. Danks
• 68th Pennsylvania Infantry: Colonel Andrew H. Tippin, Captain Milton S. Davis
• 105th Pennsylvania Infantry: Colonel Calvin A. Craig
• 114th Pennsylvania Infantry: Lieutenant Colonel Frederick E. Cavada (captured), Captain Edward R. Bowen
• 141st Pennsylvania Infantry: Colonel Henry J. Madill

2nd Brigade

Brigadier General J.H. Hobart Ward

Colonel Hiram Berdan

• 20th Indiana Infantry: Colonel John Wheeler (killed), Lieutenant Colonel William C.L. Taylor (wounded)
• 3rd Maine Infantry: Colonel Moses B. Lakeman
• 4th Maine Infantry: Colonel Elijah Walker (wounded), Captain Edwin Libby
• 86th New York Infantry: Lieutenant Colonel Benjamin L. Higgins
• 124th New York Infantry: Colonel Augustus Van Horne Ellis (killed), Lieutenant Colonel Francis M. Cummins (wounded), Captain Charles Weygant
• 99th Pennsylvania Infantry: Major John W. Moore
• 1st U.S. Sharpshooters: Colonel Hiram Berdan, Lieutenant Colonel Casper Trepp
• 2nd U.S. Sharpshooters (eight companies): Major Homer R. Stoughton

3rd Brigade

Colonel P. Regis de Trobriand

• 17th Maine Infantry: Lieutenant Colonel Charles B. Merrill
• 3rd Michigan Infantry: Colonel Byron P. Pierce (wounded), Lieutenant Colonel Edwin S. Pierce
• 5th Michigan Infantry: Lieutenant Colonel John Pulford (wounded), Major Salmon S. Matthews (wounded), Lieutenant Charles T. Bissell
• 40th New York Infantry: Colonel Thomas W. Egan
• 110th Pennsylvania Infantry (six companies): Lieutenant Colonel David M. Jones (wounded), Major Isaac Rogers

2nd Division

Brigadier General Andrew A. Humphrey

1st Brigade

Brigadier General Joseph B. Carr

• 1st Massachusetts Infantry: Lieutenant Colonel Clark B. Baldwin
• 11th Massachusetts Infantry: Lieutenant Colonel Porter D. Tripp
• 16th Massachusetts Infantry: Lieutenant Colonel Waldo Merriam (wounded), Captain Matthew Donovan
• 12th New Hampshire Infantgry: Captain John F. Langley
• 11th New Jersey Infantry: Colonel Robert McAllister (wounded) Captain Luther Martin (wounded), Captain William H. Lloyd (wounded), Captain Samuel T. Sleeper
• 26th Pennsylvania Infantry: Major Robert L. Bodine
• 84th Pennsylvania Infantry: Lieutenant Colonel Milton Opp

2nd Brigade

Colonel William R. Brewster

• 70th New York Infantry: Colonel J.E. Farnum
• 71st New York Infantry: Colonel Henry L. Potter
• 72nd New York Infantry: Colonel John S. Austin (wounded), Lieutenant Colonel John Leonard
• 73rd New York Infantry: Major Michael W. Burns
• 74th New York Infantry: Lieutenant Colonel Thomas Holt
• 120th New York Infantry: Lieutenant Colonel Cornelius D. Westbrook (wounded), Major John R. Tappen

3rd Brigade

Colonel George C. Burling

• 2nd New Hampshire Infantry: Colonel Edward L. Bailey
• 5th New Jersey Infantry: Colonel William J. Sewell (wounded), Captain Thomas C. Godfrey
• 6th New Jersey Infantry: Lieutenant Colonel Stephen R. Gilkyson
• 7th New Jersey Infantry: Colonel Louis R. Francine (mortally wounded), Major Frederick Cooper
• 8th New Jersey Infantry: Colonel John Ramsey (wounded), Captain John G. Langston
• 115th Pennsylvania Infantry: Major John P. Dunne

Artillery Brigade

Captain George E. Randolph (wounded)

Captain A. Judson Clark

• Battery B, 1st New Jersey Light Artillery (six 10-pounder Parrotts): Captain A. Judson Clark, Lieutenant Robert Sims
• Battery D, 1st New York Light Artillery (six Napoleons): Captain George B. Winslow
• 4th Battery, Indepdendent New York Light Artillery (six 10-pounder Parrotts): Captain James E. Smith
• Battery E, 1st Rhode Island Light Artillery (six Napoloens): Lieutenant John K. Bucklyn (wounded), Lieutenant Benjamin Freeborn
• Battery K, 4th U.S. Light Artillery (six Napoleons): Lieutenant Francis W. Seeley (wounded), Lieutenant Robert James

V Corps

Major General George Sykes

Staff

• Assistant Adjutant general: Lieutenant Colonel Martin T. McMahon
• Chief quartermaster: Lieutenant Colonel William H. Owen
• Medical director: Surgeon John J. Milhau

Headquarters units

• Escort:
• companies D and H, 7th Pennsylvania Cavalry: Captain William Thompson
• Provost Guard:
• Companies D and E, 12th New York Infantry: Captain Henry W. Rider

1st Division

Brigadier General James Barnes

1st Brigade

Colonel William S. Tilton

• 18th Massachusetts Infantry: Colonel Joseph Hayes
• 22nd Massachusetts Infantry: Lieutenant Colonel Thomas Sherwin, Jr.
• Attached: 2nd Company, Massachusetts Sharpshooters
• 1st Michigan Infantry: Colonel Ira C. Abbott (wounded), Lieutenant Colonel William A. Throop
• 118th Pennsylvania Infantry: Lieutenant Colonel James Gwyn

2nd Brigade

Colonel Jacob B. Sweitzer

• 9th Massachusetts Infantry (eight companies): Colonel Patrick R. Guiney
• 32nd Massachusetts Infantry (nine companies): Colonel George L. Prescott
• 4th Michigan Infantry: Colonel Harrison H. Jeffords (mortally wounded), Lieutenant Colonel George W. Lumbard
• 62nd Pennsylvania Infantry: Lieutenant Colonel James C. Hall

3rd Brigade

Colonel Strong Vincent (mortally wounded July 2nd)

Colonel James C. Rice

• 20th Maine Infantry: Colonel Joshua L. Chamberlain
• 16th Michigan Infantry: Lieutenant Colonel Norval E. Welch
• Attached: 1st Company, Michigan Sharpshooters
• 44th New York Infantry: Colonel James C. Rice, Lieutenant Colonel Freeman Conner
• 83rd Pennsylvania Infantry: Captain Orpheus S. Woodward

2nd Division

Brigadier General Romeyne B. Ayres

1st Brigade

Colonel Hannibal Day

• 3rd U.S. Infantry, companies B, C, F, G, I, and K: Captain Henry W. Freedley (wounded), Captain Richard G. Lay
• 4th U.S. Infantry, companies C, F, H, and K: Captain Julius W. Adams, Jr.
• 6th U.S. Infantry, companies D-I: Captain Levi C. Bootes
• 12th U.S. Infantry, companies A-D, G: Captain Thomas S. Dunn
• 14th U.S. Infantry, companies A-G: Major Grotius R. Giddings

2nd Brigade

Colonel Sidney Burbank

• 2nd U.S. Infantry, companies B, C, F, H, and K: Major Arthur T. Lee (wounded), Captain Samuel A. McKee
• 7th U.S. Infantry, companies A, B, E, and I: Captain David P. Hancock
• 10th U.S. Infantry, companies D, G, and H: Captain William Clinton
• 11th U.S. Infantry, companies B-G: Major DeLancey Floyd-Jones
• 17th U.S. Infantry, companies A, C, D, G, H: Lieutenant Colonel J. Durell Greene

3rd Brigade

Brigadier General Stephen H. Weed (killed July 2nd)

Colonel Kenner Garrard

• 140th New York Infantry: Colonel Patrick H. O'Rorke (killed July 2nd), Lieutenant Colonel Louis Ernst
• 146th New York Infantry: Colonel Kenner Garrard, Lieutenant Colonel David T. Jenkins
• 91st Pennsylvania Infantry: Lieutenant Colonel Joseph H. Sinex
• 155th Pennsylvania Infantry: Lieutenant Colonel John H. Cain

3rd Division (Pennsylvania Reserves)

Brigadier General Samuel W. Crawford

1st Brigade

Colonel William McCandless

• 1st Pennsylvania Reserves: Colonel WilliamC. Talley
• 2nd Pennsylvania Reserves: Lieutenant Colonel George A. Woodward
• 6th Pennsylvania Reserves: Lieutenant Colonel Wellington H. Ent
• 13th Pennsylvania Reserves: Colonel Charles F. Taylor (killed), Major William R. Hartshorne

3rd Brigade

Colonel Joseph W. Fisher

• 5th Pennsylvania Reserves: Lieutenant Colonel George Dare
• 9th Pennsylvania Reserves: Lieutenant Colonel James McK. Snodgrass
• 10th Pennsylvania Reserves: Colonel Adoniram J. Warner
• 11th Pennsylvania Reserves: Colonel Samuel M. Jackson
• 12th Pennsylvania Reserves, companies A-I: Colonel Martin D. Hardin

Artillery Brigade

Captain August P. Martin

• 3rd Battery, Massachusetts Light Artillery (six Napoleons): Lieutenant Aaron F. Walcott
• Battery C, 1st New York Light Artillery (for 3-inch Ordnance Rifles): Captain Almont Barnes
• Battery L, 1st Ohio Light Artillery (six Napoleons): Captain Frank C. Gibbs
• Battery D, 5th U.S. Light Artillery (six 10-pounder Parrotts): Lieutenant Charles E. Hazlett (killed July 2nd), Lieutenant Benjamin F. Rittenhouse
• Battery I, 5th U.S. Light Artillery (four 3-inch Ordnance Rifles): Lieutenant Malbone F. Watson (wounded), Lieutenant Charles C. MacConnell

VI Corps

Major General John Sedgwick

Headquarters units

• Escort:
• Company L, 1st New Jersey Cavalry: Captain William H. Hick
• Company H, 1st Pennsylvania Cavalry: Captain William S. Craft
• Provost Guard:
• 1st Massachusetts Cavalry: Lieutenant Colonel Greely S. Curtis

Corps staff

• Chief quartermaster: Lieutenant Colonel Cornelius W. Toles
• Medical director: Surgeon Charles O'Leary

1st Division

Brigadier General Horatio Wright

Provost Guard

• 4th New Jersey Infantry (four companies): Captain William R. Maxwell

1st Brigade

Brigadier General Albert T.A. Tolbert

• 1st New Jersey Infantry: Lieutenant Colonel William Henry, Jr.
• 2nd New Jersey Infantry: Lieutenant Colonel Charles Wiebecke
• 3rd New Jersey Infantry: Colonel Henry W. Brown
• 15th New Jersey Infantry: Colone William H. Penrose

2nd Brigade

Brigadier General Joseph L. Bartlett

• 5th Maine Infantry: Colonel Clark S. Edwards
• 121st New York Infantry (six companies): Colonel Emory Upton
• 95th Pennsylvania Infantry: Lieutenant Colonel Edward Carroll
• 96th Pennsylvania Infantry: Major William H. Lessig

3rd Brigade

Brigadier General David A. Russell

• 6th Maine Infantry: Colonel Hiram Burnham
• 49th Pennsylvania Infantry (four companies): Lieutenant Colonel Thomas M. Hulings
• 119th Pennsylvania Infantry: Colonel Peter C. Ellmaker
• 5th Wisconsin Infantry: Colonel Thomas S. Allen

2nd Division

Brigadier General Albion P. Howe

2nd Brigade (First Vermont Brigade)

Colonel Lewis A. Grant

• 2nd Vermont Infantry: Colonel James H. Walbridge
• 3rd Vermont Infantry: Colonel Thomas O. Seaver
• 4th Vermont Infantry: Colonel Charles B. Stoughton
• 5th Vermont Infantry: Lieutenant Colonel John R. Lewis
• 6th Vermont Infantry: Colonel Elisha L. Barney

3rd Brigade

Brigadier General Thomas H. Neill

• 7th Maine Infantry, companies B-D, F, I, and K: Lieutenant colonel Seldon Connor
• 33rd New York Infantry (detachment): Captain Henry J. Gifford
• 43rd New York Infantry: Lieutenant Colonel John Wilson
• 49th New York Infantry: Colonel Daniel D. Bidwell
• 77th New York Infantry: Lieutenant Colonel Winsor B. French
• 61st Pennsylvania Infantry: Lieutenant Colonel George F. Smith

3rd Division

Major General John Newton (reassigned to command I Corps July 1st)

Brigadier General Frank Wheaton

1st Brigade

Brigadier General Alexander Shaler

• 65th New York Infantry: Colonel Joseph Humblin
• 67th New York Infantry: Colonel Nelson Cross
• 122nd New York Infantry: Colonel Silas Titus
• 23rd Pennsylvania Infantry: Lieutenant Colonel John F. Glenn
• 82nd Pennsylvania Infantry: Colonel Isaac C. Bassett

2nd Brigade

Colonel Henry L. Eustis

• 7th Massachusetts Infantry: Lieutenant Colonel Franklin P. Harlow
• 10th Massachusetts Infantry: Lieutenant Colonel Joseph B. Parsons
• 37th Massachusetts Infantry: Colonel Oliver Edwards
• 2nd Rhode Island Infantry: Colonel Horatio Rogers, Jr.

3rd Brigade

Brigadier General Frank Wheaton

Colonel David J. Nevin

• 82nd New York Infantry: Colonel David J. Nevin, Lieutenant Colonel Theodore B. Hamilton
• 93rd Pennsylvania Infantry: Major John I. Nevin
• 98th Pennsylvania Infantry: Major John B. Kohler
• 102nd Pennsylvania Infantry (102 man detachment): Colonel John W. Patterson
• remainder of 102nd Pennsylvania Infantry guarding supply trains at Westminster, Maryland
• 139th Pennsylvania Infantry: Colonel Frederich H. Collier (wounded), Lieutenant Colonel William H. Moody

Artillery Brigade

Colonel Charles H. Tompkins

• Battery A, Massachusetts Light Artillery (six Napoleons): Captain William H. McCartney
• 1st Battery, Independent New York Light Artillery (six 3-inch Ordnance Rifles): Captain Andrew Cowan
• 3rd Battery, Independent New York Light Artillery (six 3-inch Ordnance Rifles): Captain William A. Harn
• Battery C, 1st Rhode Island Light Artillery (six 3-inch Ordnance Rifles): Captain Richard Waterman
• Battery G, 1st Rhode Island Light Artillery (six 10-pounder Parrotts): Captain George W. Adams
• Battery D, 2nd U.S. Light Artillery (six Napoleons): Lieutenant Edward B. Williston
• Battery G, 2nd U.S. Light Artillery (six Napoleons): Lietuenant John H. Butler
• Battery F, 5th U.S. Light Artillery (six 10-pounder Parrotts): Lieutenant Leonard Martin

XI Corps

Major General Oliver O. Howard

Headquarters units

• Escort:
• Companies I and K, 1st Indiana Cavlary: Captain Abram Sharra
• Provost Guard:
• Company K, 17th Pennsylvania Cavalry: Captain Richard Fitzgerald
• Headquarters guard:
• 8th New York Independent Company: Lieutenant Hermann Foerster

Corps staff

• Chief of staff: Colonel Charles Asmussen
• Assistant adjutant general: Lieutenant Colonel Theodore Meysenburg
• Chief quartermaster: Lieutenant Colonel William G. Le Duc
• Medical director: Surgeon George Suckley
• Signal officers: Captain P. Babcock, Captain T.R. Clark

1st Division

Brigadier General Francis Barlow (wounded July 1st)

Brigadier General Adelbert Ames

1st Brigade

Colonel Leopold von Gilsa

• 41st New York Infantry: Lieutenant Colonel Detleo von Einsiedal
• 54th New York Infantry: Major Stephen Kovacs (captured), Lieutenant Ernst Both
• 68th New York Infantry: Colonel Gotthilf Bourry
• 153rd Pennsylvania Infantry: Major John F. Frueauff

2nd Brigade

Brigadier General Adelbert Ames

Colonel Andrew L. Harris

• 17th Connecticut Infantry: Lieutenant Colonel Douglas Fowler (killed), Major Allen G. Brady
• 25th Ohio Infantry: Lieutenant Colonel Jeremiah Williams (captured), Captain Nathaniel J. Manning (wounded), Lieutenant William Maloney (wounded), Lieutenant Israel White
• 75th Ohio Infantry: Colonel Andrew L. Harris, Captain George B. Fox
• 107th Ohio Infantry: Colonel Seraphim Meyer (wounded), Captain John M. Lutz

2nd Division

Brigadier General Adolph von Steinwehr

Provost Guard

• 29th New York Infantry Independent Company: Lieutenant Hans von Brandis

1st Brigade

Colonel Charles R. Coster

• 134th New York Infantry: Lieutenant Colonel Allan H. Jackson
• 154th New York Infantry: Lieutenant Colonel Daniel B. Allen
• 27th Pennsylvania Infantry: Lieutenant Colonel Lorenz Cantador
• 73rd Pennsylvania Infantry: Captain Daniel F. Kelly

2nd Brigade

Colonel Orland Smith

• 33rd Massachusetts Infantry: Colonel Adin B. Underwood
• 136th New York Infantry: Colonel James Wood, Jr.
• 55th Ohio Infantry: Colonel Charles B. Gambee
• 73rd Ohio Infantry: Lieutenant Colonel Richard Long

3rd Division

Major General Carl Schurz

1st Brigade

Brigadier General Alexanser Schimmelfennig (trapped behind Confederate lines from afternoon July 1st to afternoon July 4th)

Colonel George von Amsberg

• 82nd Illinois Infantry: Colonel Edward S. Salomon
• 45th New York Infantry: Colonel George von Amsberg, Lieutenant Colonel Adolphus Dobke
• 157th New York Infantry: Colonel Philip B. Brown, Jr.
• 74th Pennshylvania Infantry: Colonel Adolph von Hartung (wounded July 1st), Lieutenant Colonel Alexander von Mitzel (captured July 1st), Major Gustav Schleiter

2nd Brigade

Colonel Wladimir Kryzanowski

• Brigade staff
• Assistant adjutant general: Lieutenant Edward Brueninghausen
• 58th New York Infantry: Lieutenant Colonel August Otto (wounded), Captain Emil Koenig
• 119th New York Infantry: Colonel John T. Lockman (wounded July 1st), Lieutenant Colonel Edward F. Lloyd
• 82nd Ohio Infantry: Colonel James S. Robinson (wounded), Lieutenant Colonel David Thomson
• 75th Pennsylvania Infantry, companies A-I: Colonel Francis Mahler (mortally wounded July 1st), Major August Ledig
• 26th Wisconsin Infantry: Lieutenant Colonel Hans Boebel (wounded), Captain John W. Fuschs

Artillery Brigade

Major Thomas W. Osborn

• Battery I, 1st New York Light Artillery (six 3 inch rifles): Captain Michael Wiedrich
• 13th Battery, New York Light Artillery (four 3 inch rifles): Lieutenant William Wheeler
• Battery I, 1st Ohio Light Artillery (six 12 pound Napoleons): Captain Hubert Dilger
• Battery K, 1st Ohio Light Artillery (four 12 pound Napoleons): Captain Lewis Heckman
• Battery G, 4th U.S. Artillery (six 12 pound Napoleons): Lieutenant Bayard Wilkeson (mortally wounded July 1st)

XII Corps

Major General Henry W. Slocum

Brigadier General Alpheus S. Williams

Provost Guard

• Companies A, B, and D, 10th Maine Infantry Battalion: Captain John D. Beardsley

Headquarters guard and orderlies

• 9th New York Cavalry, Companies D and L: Captain Joseph G. Weld

Corps staff

• Medical Director: Surgeon John McNulty
• Signal officer: 1st Lieutenant J.E. Holland

1st Division

Brigadier General Alpheus Williams

Brigadier General Thomas H. Ruger

1st Brigade

Colonel Archibald L. McDougall

• 5th Connecticut Infantry: Colonel Warren W. Packer
• 20th Connecticut Infantry: Lieutenant Colonel William B. Wooster
• 3rd Maryland Infantry: Colonel Joseph Sudsburg
• 123rd New York Infantry: Lieutenant Colonel James C. Rogers
• 145th New York Infantry: Colonel Edward J. Price
• 46th Pennsylvania Infantry: Colonel James L. Selfridge

2nd Brigade

Brigadier General Henry H. Lockwood

• 1st Maryland Eastern Shore: Colonel James Wallace
• 1st Maryland Potomac Home Brigade: Colonel William P. Maulsby
• 150th New York Infantry: Colonel John H. Ketcham

3rd Brigade

Brigadier General Thomas H. Ruger

Colonel Silas Colgrove

• 27th Indiana Infantry: Colonel Silas Colgrove, Lieutenant Colonel John R. Fesler
• 2nd Massachusetts Infantry: Lieutenant Colonel Charles R. Mudge (killed July 3rd), Major Charles F. Morse
• 13th New Jersey Infantry: Colonel Ezra A. Carman
• 107th New York Infantry: Colonel Nirom N. Crane
• 3rd Wisconsin Infnatry: Colonel William Hawley

2nd Division

Brigadier General John W. Geary

Provost Guard

• Company B, 28th Pennsylvania Infantry: Lieutenant George W. Newmeyer

1st Brigade

Colonel Charles Candy

• 5th Ohio Infantry: Colonel John H. Patrick
• 7th Ohio Infantry: Colonel William R. Creighton
• 29th Ohio Infantry: Captain Wilbur F. Stevens (wounded), Captain Edward Hayes
• 66th Ohio Infantry: Lieutenant Colonel Eugene Powell
• 28th Pennsylvania Infantry, companies A, C-K: Captain John Flynn (wounded)
• 147th Pennsylvania Infantry: Lieutenant Colonel Ario Pardee, Jr.

2nd Brigade

Brigadier General Thomas L. Kane (ill during battle)

Colonel George A. Cobham, Jr.

• 29th Pennsylvania Infantry: Colonel William Rickards, Jr.
• 109th Pennsylvania Infantry: Captain F.L. Gimber
• 111th Pennsylvania Infantry: Colonel George A. Cobham, Jr., Lieutenant Colonel Thomas M. Walker

3rd Brigade

Brigadier General George S. Greene

• 60th New York Infantry: Colonel Abel Godard
• 78th New York Infantry: Lieutenant Colonel H. von Hammerstein
• 102nd New York Infantry: Colonel James C. Lane (wounded), Captain Lewis R. Stegman
• 137th New York Infantry: Colonel David Ireland
• 149th New York Infantry: Colonel Henry A. Barnum

Artillery Brigade

Lieutenant Edward D. Muhlenberg

• Battery M, 1st New York Light Artillery (four 10-pounder Parrotts): Lieutenant Charles E. Winegar
• Battery E, Pennsylvania Light Artillery (six 10-pounder Parrotts): Lieutenant Charles A. Atwell
• Battery F, 4th U.S. Artillery (six Napoleons): Lieutenant Sylvanus T. Rugg
• Battery K, 5th U.S. Artillery (four Napoleons): Lieutenant David H. Kinzie

Cavalry Corps

Major General Alfred Pleasonton

Corps staff

• Chief of Staff and assisstent adjutant general: Lieutenant Colonel Alexander J. Alexander
• Commissary of Musters: Colonel George A.H. Blake, 1st U.S. Cavalry
• Cimmissary of Subsistence: Lieutenant Colonel A.S. Austin
• Ordnance officer: Lieutenant Colonel Charles R. Smith, 6th Pennsylvania Cavalry
• Inspector General:
• Lieutenant Colonel William H. Crocker
• Captain John Green, 2nd U.S. Cavalry
• Captain Frederick C. Newhall, 6th Pennsylvania Cavalry
• Medical Department:
• Director: Surgeon George L. Pancoast
• Assistant Director: Surgeon G.M. McGill
• Topographical Engineer (acting): Captain V.E. von Koerber
• Chief Quartermaster: Lieutenant Colonel Charles G. Sawtelle
• Assistant Quartermaster (acting): 1st Lieutenant John W. Spangler, 6th U.S. Cavalry
• Ambulance Department: 1st Lieutenant W.M. Taylor, 8th Illinois Cavalry

Provost Guard

• 6th U.S. Cavalry, Companies D and K: Lieutenant James F. Wade
• 4th Pennsylvania Cavalry: Lieutenant Colonel William E. Doster

1st Division

Brigadier General John Buford

Division staff

• U.S. Signal Corps detachment: Lieutenant Aaron B. Jerome

1st Brigade

Colonel William Gamble

• Headquarters Guard:
• Company L, 6th Vermont Cavalry
• 8th Illinois Cavalry: Major John L. Beveridge
• Companies G-M, 3rd Indiana Cavalry: Colonel George H. Chapman
• Attached to 3rd Indiana Cavalry:
• Companies E, F, H, and I, 12th Illinois Cavalry: Captain George W. Shears
• 8th New York Calvary: Lieutenant Colonel William L. Markell

2nd Brigade

Colonel Thomas Devin

• Provost Guard:
• 6th New York Cavalry, Company L: Captain Harrison White
• Companies B, C, E-G, I, and M, 6th New York Cavalry: Major William F. Beardsley
• Companies A-C and E-K, 9th New York Cavalry: Colonel William H. Sackett
• Companies A-C, E-G, and I-M, 17th Pennsylvania Cavalry: Colonel Josiah H. Kellogg
• Companies A and C, 3rd West Virginia Cavalry: Captain Seymour R. Conger

Reserve Brigade

Brigadier General Wesley Merritt

• 6th Pennsylvania Cavalry, companies A-D, F-H, K-M: Major James H. Haseltine
• 1st U.S. Cavalry, Companies A-E, G-M: Captain Richard S.C. Lord
• 2nd U.S. Cavalry: Captain Theophilus F. Rodenbough
• 5th U.S. Cavalry: Captain Julius W. Mason
• 6th U.S. Cavalry: Major Samuel H. Starr (wounded and captured, July 3rd), Captain George C. Cram (captured, July 3rd), Captain Ira W. Claflin

2nd Division

Brigadier General David McM. Gregg

Escort

• 1st Ohio Cavalry, Company A: Captain Noah Jones

1st Brigade

Colonel John B. McIntosh

• 1st Maryland Cavalry, companies A-L: Lieutenant Colonel James M. Deems
• Purnell Legion (Maryland), Company A: Captain Robert E. Duvall
• 1st Massachusetts Cavalry, companies A-H: Lieutenant Colonel Greely S. Curtis
• 1st New Jersey Cavalry (nine companies): Major Myron H. Beaumont
• 1st Pennslyvania Cavalry, Companies A-G, I-M: Colonel John P. Taylor
• 3rd Pennsylvania Cavalry: Lieutenant Colonel Edward S. Jones
• Battery H, 3rd Pennsylvania Heavy Artillery (two 3 inch rifles): Captain William D. Rank

2nd Brigade

Colonel Patrick Huey

Absent at Westminster, Maryland during the battle

• 2nd New York Cavalry: Lieutenant Colonel Otto Harhaus
• 4th New York Cavalry: Lieutenant Colonel Auustus Pruyn
• 6th Ohio Cavalry, Companies A-E, G-L: Major William Stedman
• 8th Pennsylvania Cavalry: Captain William A. Corrie

3rd Brigade

Colonel J. Irvin Gregg

• 1st Maine Cavalry: Lieutenant Colonel Charles H. Smith
• 10th New York Cavalry: Major Henry Avery
• 4th Pennsylvania Cavalry: Lieutenant Colonel William E. Doster
• 16th Pennsylvania Cavalry: Lieutenant Colonel John K. Robison

3rd Division

Brigadier General Judson Kilpatrick

Headquarters Guard

• Company A, 1st Ohio Cavalry: Captain Noah Jones
• Company C, 1st Ohio Cavalry: Captain Samuel N. Stanford

1st Brigade

Brigadier General Elon Farnsworth (killed July 3rd)

Colonel Nathaniel P. Richmond

• 5th New York Cavalry: Major John Hammond
• 18th Pennsylvania Cavalry: Lieutenant William P. Brinton
• 1st Vermont Cavalry: Lieutenant Colonel Addison W. Preston
• 1st West Virginia Cavalry, Companies B-H, L-N: Colonel Nathaniel P. Richmond, Major Charles E. Capehart

2nd Brigade

Brigadier General George A. Custer

• 1st Michigan Cavalry: Colonel Charles H. Town
• 5th Michigan Cavalry: Colonel Russell A. Alger
• 6th Michigan Cavalry: Colonel George Gray
• 7th Michigan Cavalry, Companies A-K: Colonel William D. Mann

Horse Artillery

1st Brigade

Captain James M. Robertson

• 9th Battery, Michigan Light Artillery (six 3-inch Ordnance Rifles): Captain Jabez J. Daniels
• 6th Battery, Independent New York Light Artillery (six 3-inch Ordnance Rifles): Captain Joseph W. Martin
• Battery B-L, 2nd U.S. Artillery (six 3-inch Ordnance Rifles): Lieutenant Edward Heaton
• Battery M, 2nd U.S. Artillery (six 3-inch ordnance rifles): Lieutenant A.C.M. Pennington, Jr.
• Battery E, 4th U.S. Artillery (four 3-inch Ordnance Rifles): Lieutenant Samuel S. Elder

2nd Brigade

Captain C. Tindall

• Battery E-G, 1st U.S. Artillery (3-inch Ordnance Rifles): Captain Alanson M. Randol
• Battery K, 1st U.S. Artillery (six 3-inch Ordnance Rifles): Captain William M. Graham
• Battery A, 2nd U.S. Artillery (six 3-inch Ordance Rifles): Lieutenant John H. Calef
• Battery C, 3rd U.S. Artillery (3-inch Ordnance Rifles): Lieutenant William D. Fuller

Artillery Reserve

Brigadier General Robert O. Tyler (injured, July 3rd)

Captain James M. Robertson

Headquarters units

• Headquarters Guard:
• Company C, 32nd Massachusetts: Captain Josiah C. Fuller
• Train Guard:
• Companies B, D-G, and K, 4th New Jersey Infantry: Major Charles Ewing

Staff

• Medical director: Surgeon Joseph D. Osborne

1st Regular Brigade

Captain Dunbar R. Ransom

• Battery H, 1st U.S. Artillery (six Napoleons): Lieutenant Chandler P. Eakin (wounded), Lieutenant Phlip D. Mason
• Battery F-K, 3rd U.S. Artillery (six Napoleons): Lieutenant John G. Turnbull
• Battery C, 4th U.S. Artillery (six Napoleons): Lieutenant Evan Thomas
• Battery C, 5th U.S. Artillery (six Napoleons): Lieutenant Gulian V. Weir

1st Volunteer Brigade

Lieutenant Colonel Freeman McGilvery

• 5th Battery, Massachusetts Light Artillery (six 3-inch Ordnance Rifles): Captain Charles A. Philips
• 9th Battery, Massachusetts Light Artillery (six Napoleons): Captain John Bigelow (wounded July 2nd), Lieutenant Richard S. Milton
• 15th Battery, Independent New York Light Artillery (four Napoleons): Captain Patrick Hart
• Battery C-F, Indepdendent Pennsylvania Light Artillery (six 3-inch Ordnance Rifles): Captain James Thompson

2nd Volunteer Brigade

Captain Elijah D. Taft

• Battery B, 1st Connecticut Heavy Artillery (four 4.5 inch Rifles): Captain Albert F. Brooker (absent at Westminster, Maryland during the battle)
• Battery M, 1st Connecticut Heavy Artillery (four 4.5 inch Rifles): Captain Franklin A. Pratt (absent at Westminster, Maryland during the battle)
• Battery B, Connecticut Light Artillery (four 14-pounder James Rifles, two 12-pounder Howitzers): Captain John W. Sterling
• 5th Battery, Independent New York Light Artillery (six 20-pounder Parrotts): Captain Elijah D. Taft

3rd Volunteer Brigade

Captain James F. Huntington

• Battery A, 1st New Hampshire Light Artillery (four 3-inch Ordnance Rifles): Captain Frederick M. Edgell
• Battery H, 1st Ohio Light Artillery (six 3-inch Ordnance Rifles): Lieutenant George W. Norton
• Battery F-G, 1st Pennsylvania Light Artillery (six 3-inch Ordnance Rifles): Captain R. Bruce Ricketts
• Battery C, 1st West Virginia Light Artillery (four 10-pounder Parrotts): Captain Wallace Hill

4th Volunteer Brigade

Captain Robert H. Fitzhugh

• Battery F, Maine Light Artillery (four Napoleons): Lieutenant Edwin B. Dow
• Battery A, Maryland Light Artillery (six 3-inch Ordnance Rifles): Captain James H. Rigby
• Battery A, 1st New Jerseky Light Artillery (six 10-pounder Parrotts): Lieutenant Augustin N. Parsons
• Battery G, 1st New York Light Artillery (six Napoleons): Captain Nelson Ames
• Battery K, 1st New York Light Artillery (six 3-inch Ordnance Rifles): Captain Robert H. Fitzhugh