Brig. Gen. Solomon Meredith (w); Col. William W. Robinson.
19th Indiana Infantry- Col. Samuel J. Williams
24th Michigan Infantry- Col. Henry A. Morrow (w), Capt. Albert M. Edwards
2nd Wisconsin Infantry- Col. Lucius Fairchild (w), Maj. John Mansfield (w), Capt. George H. Otis
6th Wisconsin Infantry- Lt. Col. Rufus R. Dawes
7th Wisconsin Infantry- Col. William W. Robinson, Maj. Mark Finnicum
12th Massachusetts Infantry- Col. James L. Bates (w), Lt. Col. David Allen, Jr.
83rd New York Infantry (9th Militia)- Lt. Col. Joseph A. Moesch
97th New York Infantry- Col. Charles Wheelock (w/c), Maj. Charles Northrup
11th Pennsylvania Infantry- Col. Richard Coulter, Capt. Benjamin F. Haines (w), Capt. John B. Overmyer
88th Pennsylvania Infantry- Maj. Benezet F. Foust (w), Capt. Edmund A. Mass (c), Capt. Henry Whiteside
90th Pennsylvania Infantry- Col. Peter Lyle, Maj. Alfred J. Sellers (MOH)
THIRD DIVISION
Maj. Gen. Abner Doubleday, Brig. Gen. Thomas A. Rowley
First Brigade
Brig. Gen. Thomas A. Rowley, Col. Chapman Biddle
80th New York Infantry (20th Militia)- Col. Theodore B. Gates
121st Pennsylvania Infantry- Col. Chapman Biddle, Maj. Alexander Biddle
142nd Pennsylvania Infantry- Col. Robert P. Cummins (mw), Lt. Col. A. B. McCalmont
151st Pennsylvania Infantry- Lt. Col. George F. McFarland (w), Capt. Walter F. Owens, Col. Harrison Allen
Second Brigade (Bucktail Brigade)
Col. Roy Stone (w), Col. Langhorne Wister (w), Col. Edmund L. Dana
143rd Pennsylvania Infantry- Col. Edmund L. Dana, Lt. Col. John D. Musser
149th Pennsylvania Infantry- Lt. Col. Walton Dwight (w), Capt. James Glenn
150th Pennsylvania Infantry- Col. Langhorne Wister (w), Lt. Col. Henry S. Huidekoper (w), Capt. Cornelius C. Widdis
Third Brigade (Second Vermont Brigade)
Brig. Gen. George J. Stannard (w), Col. Francis V. Randall
12th Vermont Infantry- Col. Asa Blunt
13th Vermont Infantry- Col. Francis V. Randall, Maj. Joseph J. Boynton, Lt. Col. William D. Munson (w)
14th Vermont Infantry- Col. William T. Nichols
15th Vermont Infantry- Col. Redfield Proctor
16th Vermont Infantry- Col. Wheelock G. Veazey (MOH)
2nd Battery (B), Maine Light Artillery- Capt. James A. Hall
5th Battery (E), Maine Light Artillery- Capt. Greenleaf T. Stevens (w), Lt. Edward N. Whittier
Batteries B and L, 1st New York Light Artillery- Capt. Gilbert H. Reynolds (w), Lt. George Breck
Battery B, 1st Pennsylvania Light Artillery- Capt. James H. Cooper
Battery B, 4th United States Artillery, Battery B- Lt. James Stewart
SECOND ARMY CORPS
Maj. Gen. Winfield S. Hancock (w), Brig. Gen. John Gibbon (w)
Escort: Co's D and K, 6th New York Cavalry- Capt. Riley Johnson
FIRST DIVISION
Brig. Gen. John C. Caldwell
First Brigade
Col. Edward E. Cross (mw), Col. H. Boyd McKeen
5th New Hampshire Infantry- Lt. Col. Charles E. Hapgood
61st New York Infantry- Col. K. Oscar Broady
81st Pennsylvania Infantry- Lt. Col. Amos Stroh
148th Pennsylvania Infantry- Col. H. Boyd McKeen, Lt. Col. Robert McFarlane
Second Brigade (Irish Brigade)
Col. Patrick Kelly
28th Massachusetts Infantry- Col. Richard Byrnes
63rd New York Infantry (2 cos.)- Lt. Col. Richard C. Bentley (w), Capt. Thomas Touhy
69th New York Infantry (2 cos.)- Capt. Richard Moroney (w), Lt. James J. Smith
88th New York Infantry (2 cos.)- Capt. Denis F. Burke
116th Pennsylvania Infantry (4 cos.)- Maj. St. Clair A. Mulholland
Third Brigade
Brig. General Samuel K. Zook (mw), Lieut. Col. John Fraser
52nd New York Infantry- Lt. Col. Charles G. Freudenberg (w), Maj. Edward Venuit (k), Capt. William Scherrer
57th New York Infantry- Lt. Col. Alford B. Chapman
66th New York Infantry- Col. Orlando H. Morris (w), Lt. Col. John S. Hammell (w), Maj. Peter Nelson
140th Pennsylvania Infantry- Col. Richard P. Roberts (k), Lt. Col. John Fraser
Fourth Brigade
Col. John R. Brooke (w)
27th Connecticut Infantry (2 cos.)- Lt. Col. Henry C. Merwin (k) , Maj. James H. Coburn
2nd Delaware Infantry- Col. William P. Bailey, Capt. Charles H. Christman
64th New York Infantry- Col. Daniel G. Bingham (w), Maj. Leman W. Bradley
53rd Pennsylvania Infantry - Lt. Col. Richard McMichael
145th Pennsylvania Infantry (7 cos.)- Col. Hiram L. Brown (w), Capt. John W. Reynolds (w), Capt. Moses W. Oliver
SECOND DIVISION
Brig. Gen. John Gibbon (w), Brig. Gen. William Harrow
First Brigade
Brig. Gen. William Harrow, Col. Francis E. Heath
19th Maine Infantry- Col. Francis E. Heath (w), Lt. Col. Henry W. Cunningham
15th Massachusetts Infantry- Col. George H. Ward (mw), Lt. Col. George C. Joslin
1st Minnesota Infantry- Col. William C. Colvill, Jr., Capt. Nathan S. Messick (k), Capt. Henry C. Coates
82nd New York Infantry (2nd Militia)- Lt. Col. James Huston (k), Capt. John Darrow
Second Brigade (Philadelphia Brigade)
Brig. Gen. Alexander S. Webb
69th Pennsylvania Infantry- Col. Dennis O'Kane (mw), Capt. William Davis
71st Pennsylvania Infantry- Col. Richard Penn Smith
72nd Pennsylvania Infantry- Col. De Witt C. Baxter (s), Lt. Col. Theodore Hesser
106th Pennsylvania Infantry- Lt. Col. William L. Curry
Third Brigade
Col. Norman J. Hall
59th New York Infantry- Lt. Col. Max A. Thoman (mw), Capt. William McFadden
19th Massachusetts Infantry- Col. Arthur F. Devereaux
20th Massachusetts Infantry- Col. Paul J. Revere (mw), Lt. Col. George N. Macy (w), Capt. Henry L. Abbott
7th Michigan Infantry- Lt. Col. Amos E. Steele, Jr. (k), Maj. Sylvanus W. Curtis
42nd New York Infantry- Col. James E. Mallon
Unattached
1st Company, Massachusetts Sharpshooters- Capt. William Plummer, Lt. Emerson L. Bicknell
THIRD DIVISION
Brig. General Alexander Hays
First Brigade
Col. Samuel S. Carroll
14th Indiana Infantry- Col. John Coons
4th Ohio Infantry- Lt. Col. Leonard W. Carpenter
8th Ohio Infantry-Lt. Col. Franklin Sawyer
7th West Virginia Infantry- Lt. Col. Jonathan H. Lockwood
Second Brigade
Col. Thomas A. Smyth (w), Lt. Col. Francis E. Pierce
14th Connecticut Infantry - Maj. Theodore G. Ellis
1st Delaware Infantry- Lt. Col. Edward P. Harris, Capt. Thomas B. Hizar (w), Lieut. William Smith (k), Lt. John D. Dent
12th New Jersey Infantry- Maj. John T. Hill
10th New York Battalion- Maj. George F. Hopper
108th New York Infantry- Lt. Col. Francis E. Pierce
Third Brigade
Col. George L. Willard (k), Col. Eliakim Sherrill (mw), Lieut. Col. James L. Bull
39th New York Infantry (4 cos.)- Maj. Hugo Hildebrandt
111th New York Infantry- Col. Clinton D. MacDougall (w), Lt. Col. Isaac M. Lusk (w), Capt. Aaron B. Seeley
125th New York Infantry- Lt. Col. Levin Crandall
126th New York Infantry- Col. Eliakim Sherrill, Lt. Col. James L. Bull
Artillery Brigade
Capt. John G. Hazard
Battery G, 1st New York Light Artillery and 14th New York Battery- Capt. James K. Rorty (k), Lt. Albert S. Sheldon (w), Lt. Robert E. Rogers
Battery A, 1st Rhode Island Artillery- Capt. William A. Arnold
Battery B, 1st Rhode Island Artillery- Lt. T. Fred Brown
Battery I, 1st United States Artillery- Lt. George A. Woodruff (mw), Lieut. Tully McCrea
Battery A, 4th United States Artillery- Lt. Alonzo H. Cushing (k), Sgt. Frederick Fuger
THIRD ARMY CORPS
Maj. Gen. Daniel E. Sickles (w), Maj. Gen. David B. Birney (w)
FIRST DIVISION
Maj. Gen. David B. Birney, Brig. Gen. J. H. Hobart Ward
First Brigade
Brig. Gen. Charles K. Graham (m,c), Col. Andrew H. Tippin
57th Pennsylvania Infantry (8 cos.)- Col. Peter Sides (w), Capt. Alanson H. Nelson
63rd Pennsylvania Infantry- Maj. John A. Danks
68th Pennsylvania Infantry- Col. Andrew H. Tippin, Capt. Milton S. Davis
105th Pennsylvania Infantry- Col. Calvin A. Craig
114th Pennsylvania Infantry- Lt. Col. Frederick F. Cavada (w), Capt. Edward R. Bowen
141st Pennsylvania Infantry- Col. Henry J. Madill
Second Brigade
Brig. Gen. J. H. Hobart Ward, Col. Hiram Berdan
20th Indiana Infantry- Col. John Wheeler (mw) , Lt. Col. William C. L. Taylor
3rd MaineInfantry - Col. Moses B. Lakeman
4th Maine (Col. Elijah Walker (), Capt. Edward Libby
86th New York Infantry- Lt. Col. Benjamin L. Higgins
124th New York Infantry- Col. Van Horne Ellis (k), Lt. Col. Francis L. Cummins
99th Pennsylvania Infantry- Maj. John W. Moore
1st United States Sharpshooters- Col. Hiram Berdan, Lt. Col. Casper Trepp
2nd United States Sharpshooters (8 cos.)- Maj. Homer R. Stoughton
Third Brigade
Col. P. Regis De Trobriand
17th Maine Infantry -Lt. Col. Charles B. Merrill
3rd Michigan Infantry- Col. Byron R. Pierce(w); Lt. Col. Edward S. Pierce
5th Michigan Infantry- Lt. Col. John Pulford (w)
40th New York Infantry- Col. Thomas W. Egan (w)
110th Pennsylvania (6 cos.)- Lt. Col. David M. Jones (w), Maj. Isaac Rogers
SECOND DIVISION
Brig. Gen. Andrew A. Humphreys
First Brigade
Brig. Gen. Joseph B. Carr
1st Massachusetts Infantry- Lt. Col. Clark B. Baldwin
11th Massachusetts Infantry- Lt. Col. Porter D. Tripp
16th Massachusetts Infantry- Lt. Col. Waldo Merriam (w), Capt. Matthew Donovan
12th New Hampshire Infantry- Capt. John F. Langley
11th New Jersey Infantry- Col. Robert McAllister (w), Capt. Luther Martin (k), Capt. William H. Lloyd (w), Capt. Samuel T. Sleeper, Lt. John Schoonover (w)
26th Pennsylvania Infantry-Maj. Robert L. Bodine
84th Pennsylvania Infantry- Lt. Col. Milton Opp (Train guard, not present at Gettysburg)
Second Brigade
Col. William R. Brewster
70th New York Infantry- Col. J. Egbert Farnum
71st New York Infantry- Col. Henry L. Potter (w)
72nd New York Infantry- Col. John S. Austin (w), Lt. Col. John Leonard
73rd New York Infantry- Maj. Michael W. Burns
74th New York Infantry- Lt. Col. Thomas Holt
120th New York Infantry- Lt. Col. Cornelius D. Westbrook (w), Maj. John R. Tappen
Third Brigade
Col. George C. Burling
2nd New Hampshire Infantry- Col. Edward L. Bailey (w)
5th New Jersey Infantry- Col. William J. Sewell (w), Capt. Thomas C. Godfrey, Capt. Henry H. Woolsey (w)
6th New Jersey Infantry- Lt. Col. Stephen R. Gilkyson
7th New Jersey Infantry- Col. Louis R. Francine (mw), Maj. Fred Cooper
8th New Jersey Infantry- Col. John Ramsey (w), Capt. John G. Langston
115th Pennsylvania Infantry- Maj. John P. Dunne
Artillery Brigade
Capt. George E. Randolph (w), Capt. A. Judson Clark
2nd Battery B, 1st New Jersey Light Artillery- Capt. A. Judson Clark, Lt. Robert Sims
Battery D, 1st New York Light Artillery- Capt. George B. Winslow
4th New York Independent Battery- Capt. James E. Smith
Battery E, 1st Rhode Island Light Artillery- Lt. John K. Bucklyn (w), Lt. Benjamin Freeborn (w)
Battery K, 4th United States Artillery- Lt. Francis W. Seeley (w), Lt. Robert James
FIFTH ARMY CORPS
Maj. Gen. George Sykes
FIRST DIVISION
Brig. Gen. James Barnes, Brig. Gen. Charles Griffin
First Brigade
Col. Williams S. Tilton
18th Massachusetts Infantry -Col. Joseph Hayes
22nd MassachusettsInfantry- Lt. Col. Thomas Sherwin, Jr.
1st Michigan Infantry- Col. Ira C. Abbott (w), Lt. Col. William A. Throop
118th Pennsylvania Infantry- Lt. Col. James Gwyn
Second Brigade
Col. Jacob B. Sweitzer
9th Massachusetts Infantry- Col. Patrick R. Guiney
32nd Massachusetts Infantry- Col. George L. Prescott
4th Michigan Infantry- Col. Harrison H. Jeffords (mw), Lt. Col. George W. Lumbard
62nd Pennsylvania Infantry- Lt. Col. James C. Hull
Third Brigade
Col. Strong Vincent (mw), Col. James C. Rice
20th Maine Infantry- Col. Joshua L. Chamberlain
16th Michigan Infantry- Lt. Col. Norval E. Welch
44th New York Infantry- Col. James C. Rice, Lt. Col. Freeman Conner
83rd Pennsylvania Infantry- Capt. Orpeus S. Woodward
SECOND DIVISION
Brig. Gen. Romeyn B. Ayres
First Brigade
Col. Hannibal Day
3rd United States Infantry (6 cos.)- Capt. Henry W. Freedley (w) , Capt. Richard G. Lay
4th United States Infantry (4 cos.)- Capt. Julius W. Adams, Jr.
6th United States Infantry (5 cos.)- Capt. Levi C. Bootes
12th United States Infantry (8 cos.)- Capt. Thomas S. Dunn
14th United States Infantry (8 cos.)- Maj. Grotius R. Giddings
Second Brigade
Col. Sidney Burbank
2nd United States Infantry (6 cos.)- Maj. Arthur T. Lee (w), Capt. Samuel A. McKee
7th United States Infantry (4 cos.)- Capt. David P. Hancock
10th United States Infantry (3 cos.)- Capt. William Clinton
11th United States Infantry (6 cos.)- Maj. DeLancey Floyd-Jones
17th United States Infantry (7 cos.)- Lt. Col. J. Durell Greene
Third Brigade
Brig. Gen. Stephen H. Weed (mw), Col. Kenner Garrard
140th New York Infantry- Col. Patrick O'Rorke(k), Lt. Col. Louis Ernst
146th New York Infantry- Col. Kenner Garrard, Lt. Col. David T. Jenkins
91st Pennsylvania Infantry- Lt. Col. Joseph H. Sinex
155th Pennsylvania Infantry- Lt. Col. John H. Cain
THIRD DIVISION
Brig. Gen. Samuel W. Crawford
First Brigade
Col. William McCandless
1st Pennsylvania Reserves (9 cos.)- Col. William C. Talley
2nd Pennsylvania Reserves- Lt. Col. George A. Woodward
6th Pennsylvania Reserves- Lt. Col. Wellington H. Ent
13th Pennsylvania Reserves- Col. Charles F. Taylor (k), Maj. William R. Hartshorne
Third Brigade
Col. Joseph W. Fisher
5th Pennsylvania Reserves- Lt. Col. George Dare
9th Pennsylvania Reserves- Lt. James McK. Snodgrass
10th Pennsylvania Reserves- Col. Adoniram J. Warner
11th Pennsylvania Reserves- Col. Samuel M. Jackson
12th Pennsylvania Reserves (9 cos.)- Col. Martin D. Hardin
Artillery Brigade
Capt. Augustus P. Martin
Battery C, 3rd Massachusetts Light Artillery- Lt. Aaron F. Walcott
Battery C, 1st New York Light Artillery- Capt. Almont Barnes
Battery L, 1st Ohio Light Artillery- Capt. Frank C. Gibbs
Battery D, 5th United States Artillery- Lt. Charles E. Hazlett (k), Lieut. Benjamin F. Rittenhouse
Battery I, 5th United States Artillery- Lt. Malbone F. Watson (w), Lt. Charles C. MacConnell
SIXTH ARMY CORPS
Maj. Gen. John Sedgwick
FIRST DIVISION
Brig. Gen. Horatio G. Wright
First Brigade
Brig. Gen. Alfred T. A. Torbert
1st New Jersey Infantry- Lt. Col. William Henry, Jr.
2nd New Jersey Infantry- Lt. Col. Charles Wiebecke
4th New Jersey Infantry (7 cos.)- Maj. Charles Ewing (Train guard, not present at Gettysburg)
3rd New Jersey Infantry- Col. Henry W. Brown
15th New Jersey Infantry- Col. William H. Penrose
Second Brigade
Brig. Gen. Joseph J. Bartlett
5th Maine Infantry- Col. Clark S. Edwards
121st New York Infantry- Col. Emory Upton
95th Pennsylvania Infantry- Lt. Col. Edward Carroll
96th Pennsylvania Infantry- Maj. William H. Lessig
Third Brigade
Brig. Gen. David A. Russell
6th Maine Infantry- Col. Hiram Burnham
49th Pennsylvania Infantry (4 cos.) - Lt. Col. Thomas L. Hulings
119th Pennsylvania Infantry- Col. Peter S. Ellmaker
5th Wisconsin Infantry- Col. Thomas S. Allen
SECOND DIVISION
Brig. Gen. Albion P. Howe
Second Brigade (First Vermont Brigade)
Col. Lewis A. Grant
2nd Vermont Infantry- Col. James H. Walbridge
3rd Vermont Infantry- Col. Thomas O. Seaver
4th Vermont Infantry- Col. Charles B. Stoughton
5th Vermont Infantry- Lt. Col. John R. Lewis
6th Vermont Infantry- Col. Elisha L. Barney
Third Brigade
Brig. Gen. Thomas H. Neill
7th Maine Infantry (6 cos.)- Lt. Col. Selden Connor
33rd New York Infantry (detach.) - Capt. Henry J. Gifford
43rd New York Infantry- Lt. Col. John Wilson
49th New York Infantry- Col. Daniel D. Bidwell
77th New York Infantry- Lt. Col. Winsor B. French
61st Pennsylvania Infantry- Lt. Col. George F. Smith
THIRD DIVISION
Maj. Gen. John Newton, Brig. Gen. Frank Wheaton
First Brigade
Brig. Gen. Alexander Shaler
65th New York Infantry- Col. Joseph E. Hamblin
67th New York Infantry- Col. Nelson Cross
122nd New York Infantry- Col. Silas Titus
23rd Pennsylvania Infantry- Lt. Col. John F. Glenn
82nd Pennsylvania Infantry- Col. Isaac C. Bassett
Second Brigade
Col. Henry L. Eustis
7th Massachusetts Infantry- Lt. Col. Franklin P. Harrow
10th Massachusetts Infantry- Lt. Col. Joseph B. Parsons
37th Massachusetts Infantry- Col. Oliver Edwards
2nd Rhode Island Infantry- Col. Horatio Rogers, Jr.
Third Brigade
Brig. Gen. Frank Wheaton, Col. David J. Nevin
62nd New York Infantry- Col. David J. Nevin
93rd Pennsylvania Infantry- Maj. John I. Nevin
98th Pennsylvania Infantry- Maj. John B. Kohler
139th Pennsylvania Infantry- Col. Fredrick H. Collier
Artillery Brigade
Col. Charles H. Tompkins
Battery A, 1st Massachusetts Light Artillery- Capt. William H. McCartney
1st New York Independent Battery- Capt. Andrew Cowan
3rd New York Independent Battery- Capt. William A. Harn
Battery C, 1st Rhode Island Light Artillery-Capt. Richard Waterman
Battery G, 1st Rhode Island Light Artillery- Capt. George A. Adams
Battery D, 2nd United States Artillery-Lt. Edward B. Williston
Battery G, 2nd United States Artillery- Lt. John H. Butler
Battery F, 5th United States Artillery- Lt. Leonard Martin
ELEVENTH ARMY CORPS
Maj. Gen. Oliver O. Howard, Maj. Gen. Carl Schurz
FIRST DIVISION
Brig. Gen. Francis C. Barlow (w), Brig. Gen. Adelbert Ames
First Brigade
Col. Leopold von Gilsa
41st New York Infantry (9 cos.)- Lt. Col. Detleo Von Einsiedal
54th New York Infantry- Maj. Stephen Kovacs (c), Lt. Ernst Both
68th New York Infantry- Col. Gotthilf Bourry
153rd Pennsylvania Infantry- Maj. John F. Frueauff
Second Brigade
Brig. Gen. Adelbert Ames, Col. Andrew L. Harris
17th Connecticut Infantry- Lt. Col. Douglas Fowler (k), Maj. Allen G. Brady
25th Ohio Infantry- Lt. Col. Jeremiah Williams (c), Capt. Nathaniel J. Manning (w), Lt. William Maloney, Lt. Israel White
75th Ohio Infantry- Col. Andrew L. Harris, Capt. George B. Fox
107th Ohio Infantry- Col. Seraphim Meyer, Capt. John M. Lutz
SECOND DIVISION
Brig. Gen. Adolph von Steinwehr
First Brigade
Col. Charles R. Coster
134th New York Infantry- Lt. Col. Allan H. Jackson
154th New York Infantry- Lt. Col. Daniel B. Allen
27th Pennsylvania Infantry- Lt. Col. Lorenz Cantador
73rd Pennsylvania Infantry- Capt. Daniel F. Kelley
Second Brigade
Col. Orlando Smith
33rd Massachusetts Infantry- Col. Adin B. Underwood
136th New York Infantry- Col. James Wood, Jr.
55th Ohio Infantry- Col. Charles B. Gambee
73rd Ohio Infantry- Lt. Col. Richard Long
THIRD DIVISION
Maj. Gen. Carl Schurz, Brig. Gen. Alexander Schimmelfennig
First Brigade
Brig. Gen. Alexander Schimmelfennig (m), Col. George Von Amsberg
82nd Illinois Infantry- Col. Edward S. Salomon
45th New YorkInfantry- Col. George Von Amsberg, Lt. Col. Adophus Dobke
157th New York Infantry- Col. Philip P. Brown, Jr.
61st Ohio Infantry- Col. Stephen J. McGroarty
74th Pennsylvania Infantry- Col. Adolph Von Hartung, Lt. Col. Alexander von Mitzel (w), Capt. Gustav Schleiter, Capt. Henry Krauseneck
Second Brigade
Col. Wladimir Krzyzanowski
58th New York Infantry- Lt. Col. August Otto (w), Capt. Emil Koenig
119th New York Infantry- Col. John T. Lockman (w), Lt. Col. Edward F. Lloyd
82nd Ohio Infantry- Col. James S. Robinson (w), Lt. Col. David Thomson
75th Pennsylvania Infantry- Col. Francis Mahler (mw), Major August Ledig
26th Wisconsin Infantry- Lt. Col. Hans Boebel (w), Capt. John W. Fuchs
Artillery Brigade
Maj. Thomas W. Osborn
Battery I, 1st New York Light Artillery- Capt. Michael Weidrich
13th New York Independent Battery- Lieut. William Wheeler
Battery I, 1st Ohio Light Artillery- Capt. Hubert Dilger
Battery K, 1st Ohio Light Artillery- Capt. Lewis Heckman
Battery G, 4th United States Artillery- Lt. Bayard Wilkeson (mw), Lt. Eugene A. Bancroft
TWELFTH ARMY CORPS
Maj. Gen. Henry W. Slocum, Brig. Gen. Alpheus S. Williams
FIRST DIVISION
Brig. Gen. Alpheus S. Williams, Brig. Gen. Thomas H. Ruger
First Brigade
Col. Archibald L. McDougall
5th Connecticut Infantry- Col. Warren W. Packer
20th Connecticut Infantry- Lt. Col. William B. Wooster
3rd Maryland Infantry- Col. Joseph M. Sudsburg
123rd New York Infantry- Lt. Col. James C. Rogers, Capt. Adolphus H. Tanner
145th New York Infantry- Col. Edward J. Price
46th Pennsylvania Infantry- Col. James L. Selfridge
Second Brigade
Brig. Gen. Henry H. Lockwood
1st Maryland Infantry, Potomac Home Brigade- Col. William P. Maulsby
1st Maryland Infantry, Eastern Shore- Col. James Wallace
150th New York Infantry- Col. John H. Ketcham
Third Brigade
Brig. Gen. Thomas H. Ruger, Col. Silas Colgrove
27th Indiana Infantry- Col. Silas Colgrove, Lt. Col. John R. Fesler
2nd Massachusetts Infantry- Lt. Col. Charles R. Mudge (k), Maj. Charles F. Morse
13th New Jersey Infantry- Col. Ezra A. Carman
107th New York Infantry- Col. Nirom M. Crane
3rd Wisconsin Infantry- Col. William Hawley
SECOND DIVISION
Brig. Gen. John W. Geary
First Brigade
Col. Charles Candy
5th Ohio Infantry- Col. John H. Patrick
7th Ohio Infantry- Col. William R. Creighton
29th Ohio Infantry- Capt. Wilbur F. Stevens (w), Capt. Edward Hayes
66th Ohio Infantry- Lieut. Col. Eugene Powell
28th Pennsylvania Infantry- Capt. John H. Flynn
147th Pennsylvania Infantry (8 cos.)- Lt. Col. Ario Pardee, Jr.
Second Brigade
Col. George A. Cobham, Jr., Brig. Gen. Thomas L. Kane
29th Pennsylvania Infantry- Col. William Rickards, Jr.
109th Pennsylvania Infantry- Capt. Frederick L. Gimber
111th Pennsylvania Infantry- Lt. Col. Thomas L. Walker, Col. George A. Cobham, Jr.
Third Brigade
Brig. Gen. George S. Greene
60th New York Infantry- Col. Abel Godard
78th New York Infantry- Lt. Col. Herbert Von Hammerstein
102nd New York Infantry- Col. James C. Lane (w), Capt. Lewis R. Stegman
137th New York Infantry- Col. David Ireland
149th New York Infantry- Col. Henry A. Barnum, Lt. Col. Charles B. Randall (w), Capt. Nicholas Grumbach
Artillery Brigade
Lt. Edward D. Muhlenberg
Battery M, 1st New York Light Artillery- Lt. Charles E. Winegar
Battery E, Independent Pennsylvania Light Artillery- Lt. Charles A. Atwell
Battery F, 4th United States Artillery- Lt. Sylvanus T. Rugg
Battery K, 5th United States Artillery-Lt. David H. Kinzie
CAVALRY CORPS
Maj. Gen. Alfred Pleasonton
FIRST DIVISION
Brig. Gen. John Buford
First Brigade
Col. William Gamble
8th Illinois Cavalry- Maj. John L. Beveridge
12th Illinois Cavalry (6 cos.)- Col. George H. Chapman
3rd Indiana Cavalry (6 cos.)- Col. George H. Chapman
8th New York Cavalry- Lt. Col. William L. Markell
Second Brigade
Col. Thomas C. Devin
6th New York Cavalry- Maj. William E. Beardsley
9th New York Cavalry- Col. William Sackett
17th Pennsylvania Cavalry- Col. Josiah H. Kellogg
3rd West Virginia Cavalry (2 cos.)- Capt. Seymour B. Conger
Reserve Brigade
Brig. Gen. Wesley Merritt
6th Pennsylvania Cavalry- Maj. James H. Haseltine
1st United States Cavalry- Capt. Richard S. C. Lord
2nd United States Cavalry- Capt. Theophilus F. Rodenbough
5th United States Cavalry- Capt. Julius W. Mason
6th United States Cavalry- Maj. Samuel H. Starr (w), Lt. Louis H. Carpenter, Lt. Nicholas Nolan, Capt. Ira W. Claflin
SECOND DIVISION
Brig. Gen. David McM. Gregg
First Brigade
Col. John B. McIntosh
1st Maryland Cavalry (11 cos.)- Lt. Col. James M. Deems
Purnell (Maryland) Legion Co. (A) (Capt. Robert E. Duvall
1st Massachusetts Cavalry- Lieut. Col. Greely S. Curtis
1st New Jersey Cavalry- Maj. Myron H. Beaumont
1st Pennsylvania Cavalry- Col. John P. Taylor
3rd Pennsylvania Cavalry- Lt. Col. Edward S. Jones
Battery H (One Section), 3rd Pennsylvania Artillery- Capt. William D. Rank
Second Brigade
Col. Pennock Huey (Guarding trains and railroads, not present at Gettysburg)
2nd New York Cavalry- Lt. Col. Otto Harhaus
4th New York Cavalry- Lt. Col. Augustus Pruyn
6th Ohio Cavalry ( 10 cos.)- Maj. William Stedman
8th Pennsylvania Cavalry- Capt. William Corrie
Third Brigade
Col. J. Irvin Gregg
1st Maine Cavalry (10 cos.)- Lt. Col. Charles H. Smith
10th New York Cavalry- Maj. M. Henry Avery
4th Pennsylvania Cavalry- Lt. Col. William E. Doster
16th Pennsylvania Cavalry- Lt. Col. John K. Robinson
THIRD DIVISION
Brig. Gen. Judson Kilpatrick, Col. Nathaniel P. Richmond
First Brigade
Brig. Gen. Elon J. Farnsworth
5th New York Cavalry- Maj. John Hammond
18th Pennsylvania Cavalry- Lt. Col. William P. Brinton
1st Vermont Cavalry- Lt. Col. Addison W. Preston
1st West Virginia Cavalry (10 cos.)- Col. Nathaniel P. Richmond, Maj. Charles E. Capehart
Second Brigade
Brig. Gen. George A. Custer
1st Michigan Cavalry- Col. Charles H. Town
5th Michigan Cavalry- Col. Russell A. Alger
6th Michigan Cavalry- Col. George Gray
7th Michigan Cavalry (10 cos.)- Col. William D. Mann
HORSE ARTILLERY
First Brigade
Capt. James M. Robertson
9th Michigan Battery- Capt. Jabez J. Daniels
6th New York Independent Battery- Capt. Joseph W. Martin
Batteries B & L, 2nd United States Artillery- Lt. Edward Heaton
Battery M, 2nd United States Artillery- Lt. A. C. M. Pennington, Jr.
Battery E, 4th United States Artillery- Lt. Samuel S. Elder
Second Brigade
Capt. John C. Tidball
Batteries E & G, 1st United States Artillery- Capt. Alanson M. Randol
Battery K, 1st United States Artillery- Capt. William M. Graham
Battery A, 2nd United States Artillery- Lt. John H. Calef
ARTILLERY RESERVE
Brig. Gen. Robert O. Tyler, Capt. James M. Robertson
First Regular Brigade
Capt. Dunbar R. Ransom
Battery H, 1st United States Artillery- Lt. Chandler P. Eakin
Batteries F & K, 3rd United States Artillery- Lt. John G. Turnbull
Battery C, 4th United States Artillery- Lt. Evan Thomas
Battery C, 5th United States Artillery- Lt. Gulian V. Weir (w)
First Volunteer Brigade
Lt. Col. Freeman McGilvery
5th Battery, Massachusetts Light Artillery- Capt. Charles A. Phillips
9th Battery, Massachusetts Light Artillery- Capt. John Bigelow
15th New York Independent Battery- Capt. Patrick Hart
Batteries C & F, Pennsylvania Independent Light Artillery- Capt. James Thompson
Second Volunteer Brigade
Capt. Elijah D. Taft
2nd Connecticut Battery- Capt. John W. Sterling
5th New York Independent Battery- Capt. Elijah D. Taft
Third Volunteer Brigade
Capt. James F. Huntington
1st Battery, New Hampshire Light Artillery- Capt. Frederick M. Edgell
Battery H, 1st Ohio Light Artillery- Lt. George W. Norton
Batteries F & G, 1st Pennsylvania Light Artillery- Capt. R. Bruce Ricketts
Battery C, 1st West Virginia Light Artillery- Capt. Wallace Hill
Fourth Volunteer Brigade
Capt. Robert H. Fitzhugh
6th Battery (F), Maine Light Artillery- -Lt. Edwin B. Dow
Battery A, 1st Maryland Light Artillery- Capt. James H. Rigby
Battery A, 1st New Jersey Light Artillery- Lt. Agustin N. Parsons
Battery G, 1st New York Light Artillery- Capt. Nelson Ames
Battery K, 1st New York Light Artillery and 11th New York Independent Battery - Capt. Robert H. Fitzhugh
ARMY HEADQUARTERS
Maj. Gen. George G. Meade
Chief of Staff: Major Gen. Daniel Butterfield (w) Chief of Engineers: Brig. Gen. Gouverneur K. Warren (w) Chief of Artillery: Brig. Gen. Henry Hunt Asst. Adjutant General: Brig. Gen. Seth Williams Chief Quartermaster: Brig. Gen. Rufus Ingalls Medical Director: Dr. Jonathon Letterman Chief Signal Officer: Capt. Lemuel B. Norton Chief Ordnance Officer: Lt. John R. Edie Provost Marshal: Brig. Gen. Marsena Patrick
93rd New York Infantry- Col. John S. Crocker
8th United States Infantry (8 cos.)- Capt. Edwin W.H. Read
2nd Pennsylvania Cavalry- Col. R. Butler Price
6th Pennsylvania Cavalry (Co's E and I)- Capt. Emlen N. Carpenter, Capt. James Starr
HQ Guard: Co. C, 32nd Massachusetts Infantry- Capt. Josiah C. Fuller HQ Escort: Oneida (NY) Cavalry- Capt. Daniel P. Mann Engineer Brigade: Brig. Gen. Henry W. Benham
15th New York Engineers- Maj. Walter L. Cassin
50th New York Engineers- Col. William H. Pettes