Battle of Gettysburg order of battle: Union

thumb|[[Harper's Weekly cover, July 11, 1863: "Major-General George G. Meade, the New Commander of the Army of the Potomac — Photographed by Brady"]]

The Union order of battle during the Battle of Gettysburg includes the American Civil War officers and men of the Army of the Potomac (multiple commander names indicate succession of command during the three-day battle (July 1–3, 1863)). Order of battle compiled from the army organization during the battle, the casualty returns and the reports.

Abbreviations used

Military rank

MG = Major General
BG = Brigadier General
Col = Colonel
Ltc = Lieutenant Colonel
Maj = Major
Cpt = Captain
Lt = Lieutenant
Sgt = Sergeant

Other

w = wounded
mw = mortally wounded
k = killed
c = captured
m = missing

Army of the Potomac

MG George G. Meade, Commanding

General Staff and Headquarters

General Staff:

Chief of Staff: MG Daniel Butterfield (w)
Assistant Adjutant General: BG Seth Williams
Assistant Inspector General: Col Edmund Schriver
Chief Quartermaster: BG Rufus Ingalls
Commissaries and subsistence: Col Henry F. Clarke
Chief of Artillery: BG Henry J. Hunt (w)
Chief Ordnance Officer: Cpt Daniel W. Flagler
Chief Signal Officer: Cpt Lemuel B. Norton
Medical Director: Maj Jonathan Letterman
Chief of Engineers: BG Gouverneur K. Warren (w)
Bureau of Military Information: Col George H. Sharpe

General Headquarters:

Command of the Provost Marshal General: BG Marsena R. Patrick

93rd New York: Col John S. Crocker
8th United States (8 companies): Cpt Edwin W. H. Read
2nd Pennsylvania Cavalry: Col Richard Butler Price
6th Pennsylvania Cavalry (Companies E & I): Cpt James Starr
Regular cavalry

Guards and Orderlies:

Oneida (New York) Cavalry: Cpt Daniel P. Mann

Engineer Brigade: BG Henry W. Benham

15th New York Engineers (3 companies): Maj Walter L. Cassin
50th New York Engineers: Col William H. Pettes
U.S. Battalion: Cpt George H. Mendell

I Corps

MG John F. Reynolds (k)

MG Abner Doubleday

MG John Newton

General Headquarters:

1st Maine Cavalry, Company L: Cpt Constantine Taylor

{| class="wikitable"

! style="width:25%;"|Division

! style="width:25%;"|Brigade

! Regiments and Others

| rowspan=2 |

First Division

50px

BG James S. Wadsworth

| 1st Brigade

BG Solomon Meredith (w)

Col William W. Robinson

19th Indiana: Col Samuel J. Williams (w), Ltc William W. Dudley (w), Maj John M. Lindley (w)
24th Michigan: Col Henry A. Morrow (w&c), Ltc Mark Flanigan (w), Maj Edwin B. Wight (w), Cpt Albert M. Edwards
2nd Wisconsin: Col Lucius Fairchild (w&c), Ltc George H. Stevens (mw), Maj John Mansfield (w), Cpt George H. Otis
6th Wisconsin: Ltc Rufus Dawes, Maj John F. Hauser
7th Wisconsin: Col William W. Robinson, Ltc John B. Callis (w&c), Maj Mark Finnicum (w)

| 2nd Brigade

BG Lysander Cutler

7th Indiana: Col Ira G. Grover
76th New York: Maj Andrew J. Grover (k, July 1), Cpt John E. Cook (w)
84th New York (14th Militia): Col Edward B. Fowler (w) Ltc R. B. Jordan (w)
95th New York: Col George H. Biddle (w, July 1), Maj Edward Pye
147th New York: Ltc Francis C. Miller (w), Maj George Harney
56th Pennsylvania (9 companies): Col William Hofmann

| rowspan=2 |

Second Division

50px

BG John C. Robinson

| 1st Brigade

BG Gabriel R. Paul (w)

Col Samuel H. Leonard (w)

Col Adrian R. Root (w&c)

Col Richard Coulter (w)

Col Peter Lyle

Col Richard Coulter

16th Maine: Col Charles W. Tilden (c), Cpt Daniel Marston
13th Massachusetts: Col Samuel H. Leonard, Ltc Nathaniel W. Batchelder
94th New York: Col Adrian R. Root (w/c, July 1), Maj Samuel A. Moffett
104th New York: Col Gilbert G. Prey, Ltc Henry Tuthill (w)
107th Pennsylvania: Ltc James McThomson (w, July 1), Cpt Emanuel D. Roath

| 2nd Brigade

BG Henry Baxter

12th Massachusetts: Col James L. Bates (w), Ltc David Allen, Jr.
83rd New York (9th Militia): Ltc Joseph A. Moesch
97th New York: Col Charles Wheelock (w & c, July 1), Ltc John P. Spofford (c) Maj Charles B. Northrup
11th Pennsylvania: Col Richard Coulter, Cpt Benjamin F. Haines (w), Cpt John B. Overmyer
88th Pennsylvania: Maj Benezet F. Foust (w, July 1), Cpt Edmund A. Mass (c), Cpt Henry Whiteside
90th Pennsylvania: Col Peter Lyle, Maj Alfred J. Sellers

| rowspan=3 |

Third Division

50px

MG Abner Doubleday

BG Thomas A. Rowley

| 1st Brigade

Col Chapman Biddle (w)

BG Thomas A. Rowley (w)

80th New York (20th Militia): Col Theodore B. Gates, Maj Walter A. Van Rensselaer (w)
121st Pennsylvania: Col Chapman Biddle, Maj Alexander Biddle
142nd Pennsylvania: Col Robert P. Cummins (mw), Ltc Alfred B. McCalmont, Maj Horatio N. Warren
151st Pennsylvania: Ltc George F. McFarland (w), Cpt Walter L. Owens, Col Harrison Allen

| 2nd Brigade

Col Roy Stone (w)

Col Langhorne Wister (w)

Col Edmund L. Dana

143rd Pennsylvania: Col Edmund L. Dana, Ltc John D. Musser (w)
149th Pennsylvania: Ltc Walton Dwight (w), Cpt James Glenn
150th Pennsylvania: Col Langhorne Wister, Ltc Henry S. Huidekoper (w), Maj Thomas Chamberlin (w), Cpt Cornelius C. Widdis (c), Cpt George W. Jones

| 3rd Brigade

BG George J. Stannard (w)

Col Francis V. Randall

13th Vermont: Col Francis V. Randall, Ltc William D. Munson (w), Maj Joseph J. Boynton
14th Vermont: Col William T. Nichols, Ltc Charles W. Rose
16th Vermont: Col Wheelock G. Veazey, Maj William Rounds

| Artillery Brigade

Col Charles S. Wainwright

Maine Light, 2nd Battery (B): Cpt James A. Hall
Maine Light, 5th Battery (E): Cpt Greenlief T. Stevens (w), Lt Edward N. Whittier
1st New York Light, Battery E & Battery L: Cpt Gilbert H. Reynolds (w, July 1), Lt George Breck
1st Pennsylvania Light, Battery B: Cpt James H. Cooper
4th United States, Battery B: Lt James Stewart (w), Lt James Davison (w)

II Corps

MG Winfield S. Hancock (w)

BG John Gibbon

BG William Hays

General Headquarters:

6th New York Cavalry, Companies D and K: Cpt Riley Johnson (Escort)
53rd Pennsylvania Infantry, Companies A, B and K: Maj Octavus Bull (Provost Marshal 2nd Corps)

{| class="wikitable"

! style="width:25%;"|Division

! style="width:25%;"|Brigade

! Regiments and Others

| rowspan=4 |

First Division

50px

BG John C. Caldwell

| 1st Brigade

Col Edward E. Cross (mw)

Col H. Boyd McKeen

5th New Hampshire: Ltc Charles E. Hapgood, Maj Richard E. Cross
61st New York: Ltc K. Oscar Broady
81st Pennsylvania: Col Henry Boyd McKeen, Ltc Amos Stroh
148th Pennsylvania: Col H. Boyd McKeen, Ltc Robert McFarlane, Maj Robert H. Foster

| 2nd Brigade

Col Patrick Kelly

28th Massachusetts: Col Richard Byrnes
63rd New York Infantry (2 companies): Ltc Richard C. Bentley (w), Cpt Thomas Touhy
69th New York (2 companies): Cpt Richard Moroney (w), Lt James J. Smith
88th New York Infantry (2 companies): Cpt Denis F. Burke
116th Pennsylvania (4 companies): Maj St. Clair A. Mulholland

| 3rd Brigade

BG Samuel K. Zook (mw July 2)

Ltc Charles G. Freudenberg (w July 2)

Col Richard P. Roberts (k)

Ltc John Fraser

52nd New York: Ltc Charles G. Freudenberg (w July 2), Maj Edward Venuti (k), Cpt William Scherrer
57th New York: Ltc Alford B. Chapman
66th New York: Col Orlando H. Morris (w), Ltc John S. Hammell (w), Maj Peter A. Nelson
140th Pennsylvania: Col Richard P. Roberts, Ltc John Fraser, Maj Thomas Rodgers

| 4th Brigade

Col John R. Brooke (w)

27th Connecticut (2 companies): Ltc Henry C. Merwin (k), Maj James H. Coburn
2nd Delaware: Col William P. Bailey (w July 2), Ltc David L. Stricker (w July 2), Cpt Charles H. Christman
64th New York: Col Daniel G. Bingham (w), Maj Leman W. Bradley (w)
53rd Pennsylvania: Ltc Richards McMichael
145th Pennsylvania (7 companies): Col Hiram Loomis Brown (w July 2), Cpt John W. Reynolds (w July 2), Cpt Moses W. Oliver

| rowspan=4 |

Second Division

50px

BG John Gibbon (w)

BG William Harrow

| 1st Brigade

BG William Harrow

Col Francis E. Heath (w)

19th Maine: Col Francis E. Heath, Ltc Henry W. Cunningham
15th Massachusetts: Col George H. Ward (mw), Ltc George C. Joslin, Maj Isaac H. Hooper
1st Minnesota: Col William Colvill, Jr. (w), Cpt Nathan S. Messick (k), Cpt Henry C. Coates
82nd New York (2nd Militia): Ltc James Huston (mw), Maj Thomas W. Baird (w), Cpt John Darrow

| 2nd Brigade

BG Alexander S. Webb (w)

69th Pennsylvania: Col Dennis O'Kane (mw), Ltc Martin Tschudy (k), Maj James M. Duffy (w), Cpt William Davis
71st Pennsylvania: Col Richard P. Smith, Ltc Charles Kochersperger
72nd Pennsylvania: Col De Witt C. Baxter (w), Ltc Theodore Hesser, Maj Samuel Roberts
106th Pennsylvania: Ltc William L. Curry, Maj John H. Stover

| 3rd Brigade

Col Norman J. Hall

19th Massachusetts: Col Arthur F. Devereux, Ltc Ansel D. Wass (w), Maj Edmund Rice (w)
20th Massachusetts: Col Paul Joseph Revere (mw), Ltc George N. Macy (w), Cpt Henry L. Abbott
7th Michigan: Ltc Amos E. Steele (k), Maj Sylvanus W. Curtiss
42nd New York: Col James E. Mallon
59th New York (4 companies): Ltc Max A. Thoman (mw), Cpt William McFadden

| unattached

Massachusetts Sharpshooters, 1st Company: Cpt William Plumer, Lt Emerson L. Bicknell

| rowspan=3 |

Third Division

50px

BG Alexander Hays

| 1st Brigade

Col Samuel S. Carroll

14th Indiana: Col John Coons, Ltc Elijah H. C. Cavins, Maj William Houghton
4th Ohio: Ltc Leonard W. Carpenter, Maj Gordon A. Stewart
8th Ohio: Ltc Franklin Sawyer (w)
7th West Virginia: Ltc Jonathan H. Lockwood (w)

| 2nd Brigade

Col Thomas A. Smyth (w)

Ltc Francis E. Pierce

14th Connecticut: Maj Theodore G. Ellis
1st Delaware: Ltc Edward P. Harris, Cpt Thomas B. Hizar (w), Lt William Smith (k), Lt John T. Dent
12th New Jersey: Maj John T. Hill
10th New York (battalion): Maj George F. Hopper
108th New York: Ltc Francis E. Pierce

| 3rd Brigade

Col George L. Willard (k)

Col Eliakim Sherrill

Ltc James M. Bull

Col Clinton D. MacDougall (w)

Col Eliakim Sherrill (mw, July 3)

39th New York (4 companies): Maj Hugo Hildebrandt (w)
111th New York: Col Clinton D. MacDougall, Ltc Isaac M. Lusk (w), Cpt Aaron P. Seeley
125th New York: Ltc Levin Crandell
126th New York: Col Eliakim Sherrill, Ltc James M. Bull

| Artillery Brigade

50px

Cpt John G. Hazard

1st New York Light, Battery B: Cpt James M. Rorty (k), Lt Albert S. Sheldon (w), Lt Robert E. Rogers
1st Rhode Island Light, Battery A: Cpt William A. Arnold
1st Rhode Island Light, Battery B: Lt Thomas F. Brown (w), Lt William S. Perrin
1st United States, Battery I: Lt George A. Woodruff (mw), Lt Tully McCrea
4th United States, Battery A: Lt Alonzo H. Cushing (k), Lt Samuel Canby (w), Lt Joseph S. Milne (k), Sgt Frederick Füger

III Corps

MG Daniel E. Sickles (w)

MG David B. Birney (w)

{| class="wikitable"

! style="width:25%;"|Division

! style="width:25%;"|Brigade

! Regiments and Others

| rowspan=3 |

First Division

50px

MG David B. Birney

BG J. H. Hobart Ward (w)

| 1st Brigade

BG Charles K. Graham (w&c)

Col Andrew H. Tippin

Col Henry J. Madill

57th Pennsylvania (8 companies): Col Peter Sides (w, July 2), Maj William B. Neeper (w&c), Cpt Alanson H. Nelson (w)
63rd Pennsylvania: Maj John A. Danks
68th Pennsylvania: Col Andrew H. Tippin, Ltc Anthony H. Reynolds (w), Maj Robert E. Winslow (w), Cpt Milton S. Davis
105th Pennsylvania: Col Calvin A. Craig
114th Pennsylvania: Ltc Frederick F. Cavada (c), Cpt Edward R. Bowen
141st Pennsylvania: Col Henry J. Madill, Maj Israel P. Spaulding (mw&c)

| 2nd Brigade

BG J. H. Hobart Ward

Col Hiram Berdan

20th Indiana: Col John Wheeler (k), Ltc William C. L. Taylor (w)
3rd Maine: Col Moses B. Lakeman, Maj Samuel P. Lee (w)
4th Maine: Col Elijah Walker (w), Maj Ebenezer Whitcomb (mw), Cpt Edwin Libby
86th New York: Ltc Benjamin L. Higgins (w, July 2), Maj Jacob H. Lansing
124th New York: Col Augustus van H. Ellis (k), Ltc Francis M. Cummins (w), Maj James Cromwell (k)
99th Pennsylvania: Maj John W. Moore (w), Cpt Peter Fritz, Jr.
1st United States Sharpshooters: Col Hiram Berdan, Ltc Casper Trepp
2nd United States Sharpshooters (8 companies): Maj Homer R. Stoughton

| 3rd Brigade

Col P. Régis de Trobriand

17th Maine: Ltc Charles B. Merrill, Maj George W. West
3rd Michigan: Col Byron R. Pierce (w), Ltc Edwin S. Pierce, Maj Moses B. Houghton
5th Michigan: Ltc John Pulford (w), Maj Salmon S. Matthews (w)
40th New York: Col Thomas W. Egan (w), Ltc Augustus J. Warner (w)
110th Pennsylvania (6 companies): Ltc David M. Jones (w July 2), Maj Isaac Rogers

| rowspan=3 |

Second Division

50px

BG Andrew A. Humphreys

| 1st Brigade

BG Joseph B. Carr (w)

1st Massachusetts: Ltc Clark B. Baldwin (w), Maj Gardner Walker (w)
11th Massachusetts: Ltc Porter D. Tripp, Maj Andrew N. McDonald (w)
16th Massachusetts: Ltc Waldo Merriam (w, July 2), Cpt Matthew Donovan
12th New Hampshire: Cpt John F. Langley (w), Cpt Thomas E. Barker
11th New Jersey: Col Robert McAllister (w), Maj Philip J. Kearny (mw), Cpt Luther Martin (k), Lt John Schoonover (w), Cpt William H. Lloyd (w), Cpt Samuel T. Sleeper, Lt John Schoonover
26th Pennsylvania: Maj Robert L. Bodine (w)

| 2nd Brigade

Col William R. Brewster

70th New York: Col John E. Farnum
71st New York: Col Henry L. Potter (w)
72nd New York: Col John S. Austin (w), Ltc John Leonard, Maj Caspar K. Abell
73rd New York: Maj Michael W. Burns
74th New York: Ltc Thomas Holt
120th New York: Ltc Cornelius D. Westbrook (w, July 2), Maj John R. Tappen

| 3rd Brigade

Col George C. Burling

2nd New Hampshire: Col Edward L. Bailey (w), Ltc James W. Carr (w)
5th New Jersey: Col William J. Sewell (w), Cpt Thomas C. Godfrey, Cpt Henry H. Woolsey (w)
6th New Jersey: Ltc Stephen R. Gilkyson
7th New Jersey: Col Louis R. Francine (mw), Ltc Francis Price (w), Maj Frederick Cooper
8th New Jersey: Col John Ramsey (w, July 2), Cpt John Langton
115th Pennsylvania: Maj John P. Dunne

| Artillery Brigade

Cpt George E. Randolph (w)

Cpt A. Judson Clark

1st New Jersey Light, Battery B: Cpt A. Judson Clark, Lt Robert Sims
1st New York Light, Battery D: Cpt George B. Winslow
New York Light, 4th Battery: Cpt James E. Smith
1st Rhode Island Light, Battery E: Lt John K. Bucklyn (w), Lt Benjamin Freeborn (w)
4th United States, Battery K: Lt Francis W. Seeley (w, July 2), Lt Robert James

V Corps

MG George Sykes

General Headquarters:

12th New York Infantry (Companies D and E): Cpt Henry W. Ryder
17th Pennsylvania Cavalry, Companies D and H: Cpt William Thompson

{| class="wikitable"

! style="width:25%;"|Division

! style="width:25%;"|Brigade

! Regiments and Others

| rowspan=3 |

First Division

50px

BG James Barnes (w)

| 1st Brigade

Col William S. Tilton

18th Massachusetts: Col Joseph Hayes (w)
22nd Massachusetts: Ltc Thomas Sherwin, Jr.
1st Michigan: Col Ira C. Abbott (w), Ltc William A. Throop (w)
118th Pennsylvania: Ltc James Gwyn, Maj Charles P. Herring

| 2nd Brigade

Col Jacob B. Sweitzer

9th Massachusetts: Col Patrick R. Guiney
32nd Massachusetts: Col George Lincoln Prescott (w), Ltc Luther Stephenson, Jr. (w), Maj James A. Cunningham
4th Michigan: Col Harrison H. Jeffords (mw), Ltc George W. Lumbard
62nd Pennsylvania: Ltc James C. Hull

| 3rd Brigade

Col Strong Vincent (mw)

Col James C. Rice

20th Maine: Col Joshua L. Chamberlain (w)
16th Michigan: Ltc Norval E. Welch
44th New York: Col James C. Rice, Ltc Freeman Conner, Maj Edward B. Knox
83rd Pennsylvania: Cpt Orpheus S. Woodward

| rowspan=3 |

Second Division

50px

BG Romeyn B. Ayres

| 1st Brigade

Col Hannibal Day

3rd United States (Companies B, C, E, G, I and K): Cpt Henry W. Freedley (w), Cpt Richard G. Lay
4th United States (Companies C, F, H and K): Cpt Julius W. Adams, Jr.
6th United States (Companies D, F, G, H and I): Cpt Levi C. Bootes (w)
12th United States (Companies A, B, C, D and G, 1st Battalion and Companies A, C and D, 2nd Battalion): Cpt Thomas S. Dunn
14th United States (Companies A, B, D, E, F and G, 1st Battalion and Companies F and G, 2nd Battalion): Maj Grotius R. Giddings

| 2nd Brigade

Col Sidney Burbank

2nd United States (Companies B, C, F, H, I and K): Maj Arthur T. Lee (w), Cpt Samuel A. McKee
7th United States (Companies A, B, E and I): Cpt David P. Hancock
10th United States (Companies D, G and H): Cpt William Clinton
11th United States (Companies B, C, D, E, F and G): Maj DeLancey Floyd-Jones
17th United States (Companies A, C, D, G and H, 1st Battalion and Companies A and B, 2nd Battalion): Ltc James D. Greene

| 3rd Brigade

BG Stephen H. Weed (k)

Col Kenner Garrard

140th New York: Col Patrick O'Rorke (k), Ltc Louis Ernst, Maj Isaiah Force
146th New York: Col Kenner Garrard, Ltc David T. Jenkins
91st Pennsylvania: Ltc Joseph H. Sinex
155th Pennsylvania: Ltc John H. Cain

| rowspan=2 |

Third Division

50px

BG Samuel W. Crawford

| 1st Brigade

Col William McCandless

1st Pennsylvania Reserves (9 companies): Col William C. Talley (w)
2nd Pennsylvania Reserves: Ltc George A. Woodward
6th Pennsylvania Reserves: Ltc Wellington H. Ent
13th Pennsylvania Reserves: Col Charles F. Taylor (k), Ltc Alanson E. Niles (w) Maj William R. Hartshorne

| 3rd Brigade

Col Joseph W. Fisher

5th Pennsylvania Reserves: Ltc George Dare, Maj James H. Larrimer
9th Pennsylvania Reserves: Ltc James M. Snodgrass
10th Pennsylvania Reserves: Col Adoniram J. Warner (w), Ltc James B. Knox
11th Pennsylvania Reserves: Col Samuel M. Jackson, Ltc Daniel Porter (w)
12th Pennsylvania Reserves (9 companies): Col Martin Davis Hardin

| Artillery Brigade

Cpt Augustus P. Martin

Massachusetts Light, 3rd Battery: Lt Aaron F. Walcott
1st New York Light, Battery C: Cpt Almont Barnes
1st Ohio Light, Battery L: Cpt Frank C. Gibbs
5th United States, Battery D: Lt Charles E. Hazlett (k), Lt Benjamin F. Rittenhouse
5th United States, Battery I: Lt Malbone F. Watson (w), Lt Charles C. MacConnell

VI Corps

MG John Sedgwick

General Headquarters:

1st New Jersey Cavalry, Company L and 1st Pennsylvania Cavalry, Company H: Cpt William S. Craft

{| class="wikitable"

! style="width:25%;"|Division

! style="width:25%;"|Brigade

! Regiments and Others

| rowspan=4 |

First Division

50px

BG Horatio G. Wright

| 1st Brigade

BG Alfred T. A. Torbert

1st New Jersey: Ltc William Henry, Jr.
2nd New Jersey: Ltc Charles Wiebecke
3rd New Jersey: Col Henry W. Brown, Ltc Edward L. Campbell
15th New Jersey: Col William H. Penrose

| 2nd Brigade

BG Joseph J. Bartlett

Col Emory Upton

5th Maine: Col Clark S. Edwards
121st New York: Col Emory Upton
95th Pennsylvania: Ltc Edward Carroll
96th Pennsylvania: Maj William H. Lessig

| 3rd Brigade

BG David A. Russell

6th Maine: Col Hiram Burnham
49th Pennsylvania (4 companies): Ltc Thomas M. Hulings
119th Pennsylvania: Col Peter C. Ellmaker
5th Wisconsin: Col Thomas S. Allen

| Provost Guard

4th New Jersey (3 companies): Cpt William R. Maxwell

| rowspan=2 |

Second Division

50px

BG Albion P. Howe

| 2nd Brigade

Col Lewis A. Grant

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

| 3rd Brigade

BG Thomas H. Neill

7th Maine (6 companies): Ltc Seldon Connor
33rd New York (detachment): Cpt Henry J. Gifford
43rd New York: Ltc John Wilson
49th New York: Col Daniel D. Bidwell
77th New York: Ltc Winsor B. French
61st Pennsylvania: Ltc George F. Smith

| rowspan=3 |

Third Division

50px

MG John Newton

BG Frank Wheaton

| 1st Brigade

BG Alexander Shaler

65th New York: Col Joseph E. Hamblin
67th New York: Col Nelson Cross
122nd New York: Col Silas Titus
23rd Pennsylvania: Ltc John F. Glenn
82nd Pennsylvania: Col Isaac C. Bassett

| 2nd Brigade

Col Henry L. Eustis

7th Massachusetts: Ltc Franklin P. Harlow
10th Massachusetts: Ltc Joseph B. Parsons
37th Massachusetts: Col Oliver Edwards
2nd Rhode Island: Col Horatio Rogers, Jr.

| 3rd Brigade

BG Frank Wheaton

Col David J. Nevin

62nd New York: Col David J. Nevin, Ltc Theodore B. Hamilton
93rd Pennsylvania: Maj John I. Nevin
98th Pennsylvania: Maj John B. Kohler
139th Pennsylvania: Col Frederick H. Collier (w), Ltc William H. Moody

| Artillery Brigade

Col Charles H. Tompkins

Massachusetts Light, 1st Battery (A): Cpt William H. McCartney
New York Light, 1st Battery: Cpt Andrew Cowan
New York Light, 3rd Battery: Cpt William A. Harn
1st Rhode Island Light, Battery C: Cpt Richard Waterman
1st Rhode Island Light, Battery G: Cpt George W. Adams
2nd United States, Battery D: Lt Edward B. Williston
2nd United States, Battery G: Lt John H. Butler
5th United States, Battery F: Lt Leonard Martin

XI Corps

MG Oliver O. Howard

MG Carl Schurz

General Headquarters:

1st Indiana Cavalry, Companies I and K: Cpt Abram Sharra
8th New York Infantry (1 company): Lt Hermann Foerster

{| class="wikitable"

! style="width:25%;"|Division

! style="width:25%;"|Brigade

! Regiments and Others

| rowspan=2 |

First Division

50px

BG Francis C. Barlow (w&c)

BG Adelbert Ames

1st Brigade

Col Leopold von Gilsa

41st New York (9 companies): Ltc Detler von Einsiedel
54th New York: Maj Stephen Kovacs (c), Lt Ernst Both
68th New York: Col Gotthilf Bourry
153rd Pennsylvania: Maj John F. Frueauff

| 2nd Brigade

BG Adelbert Ames

Col Andrew L. Harris

17th Connecticut: Ltc Douglas Fowler (k July 1), Maj Allen G. Brady (w July 2)
25th Ohio: Ltc Jeremiah Williams (c), Cpt Nathaniel J. Manning (w), Lt William Maloney (w), Lt Israel White
75th Ohio: Col Andrew L. Harris, Cpt George B. Fox
107th Ohio: Col Seraphim Meyer (w), Cpt John M. Lutz

| rowspan=2 |

Second Division

50px

BG Adolph von Steinwehr

| 1st Brigade

Col Charles R. Coster

134th New York: Ltc Allan H. Jackson (c), Maj George W. B. Seeley
154th New York: Ltc Daniel B. Allen, Maj Lewis D. Warner
27th Pennsylvania: Ltc Lorenz Cantador
73rd Pennsylvania: Cpt Daniel F. Kelley

| 2nd Brigade

Col Orland Smith

33rd Massachusetts: Col Adin B. Underwood
136th New York: Col James Wood
55th Ohio: Col Charles B. Gambee
73rd Ohio: Ltc Richard Long

| rowspan=2 |

Third Division

50px

MG Carl Schurz

BG Alexander Schimmelfennig

MG Carl Schurz

| 1st Brigade

BG Alexander Schimmelfennig

Col George von Amsberg

82nd Illinois: Ltc Edward S. Salomon
45th New York: Col George von Amsberg, Ltc Adolphus Dobke (w)
157th New York: Col Philip P. Brown, Jr. (w), Ltc George Arrowsmith (k)
61st Ohio: Col Stephen J. McGroarty, Ltc William H. H. Brown
74th Pennsylvania: Col Adolph von Hartung (w), Ltc Alexander von Mitzel (c), Cpt Henry Krauseneck

| 2nd Brigade

Col Wladimir Krzyzanowski

58th New York: Ltc August Otto (w), Cpt Emil Koenig
119th New York: Col John T. Lockman (w), Ltc Edward F. Lloyd
82nd Ohio: Col James S. Robinson (w), Ltc David Thomson
75th Pennsylvania: Col Francis Mahler (mw), Maj August Ledig
26th Wisconsin: Ltc Hans Boebel (w), Maj Henry Baetz (w), Cpt John W. Fuchs

| Artillery Brigade

Maj Thomas W. Osborn

1st New York Light, Battery I: Cpt Michael Wiedrich
New York Light, 13th Battery: Lt William Wheeler
1st Ohio Light, Battery I: Cpt Hubert Dilger
1st Ohio Light, Battery K: Cpt Lewis Heckman
4th United States, Battery G: Lt Bayard Wilkeson (mw), Lt Eugene A. Bancroft

XII Corps

MG Henry W. Slocum

BG Alpheus S. Williams

Provost Guard:

10th Maine Battalion (3 companies): Cpt John D. Beardsley

{| class="wikitable"

! style="width:25%;"|Division

! style="width:25%;"|Brigade

! Regiments and Others

| rowspan=2 |

First Division

50px

BG Alpheus S. Williams

BG Thomas H. Ruger

| 1st Brigade

Col Archibald L. McDougall

5th Connecticut: Col Warren W. Packer
20th Connecticut: Ltc William B. Wooster, Maj Philo B. Buckingham
3rd Maryland: Col Joseph M. Sudsburg, Ltc Gilbert P. Robinson
123rd New York: Ltc James C. Rogers, Cpt Adolphus H. Tanner
145th New York: Col Edward L. Price
46th Pennsylvania: Col James L. Selfridge

| 3rd Brigade

BG Thomas H. Ruger

Col Silas Colgrove

27th Indiana: Col Silas Colgrove, Ltc John R. Fesler, Maj Theodore F. Colgrove
2nd Massachusetts: Ltc Charles R. Mudge (k), Maj Charles F. Morse
13th New Jersey: Col Ezra A. Carman
107th New York: Col Nirom M. Crane
3rd Wisconsin: Col William Hawley, Ltc Martin Flood

| rowspan=3 |

Second Division

50px

BG John W. Geary

| 1st Brigade

Col Charles Candy

5th Ohio: Col John H. Patrick
7th Ohio: Col William R. Creighton, Ltc O. J. Crane
29th Ohio: Cpt Wilbur F. Stevens (w), Cpt Edward Hayes
66th Ohio: Ltc Eugene Powell, Maj Joshua G. Palmer (mw)
28th Pennsylvania: Cpt John H. Flynn (w)
147th Pennsylvania (8 companies): Ltc Ario Pardee, Jr., Maj George Harney

| 2nd Brigade

Col George A. Cobham, Jr.

BG Thomas L. Kane

29th Pennsylvania: Col William Rickards, Jr., Ltc Samuel M. Zulick
109th Pennsylvania: Cpt Frederick L. Gimber
111th Pennsylvania: Ltc Thomas M. Walker

| 3rd Brigade

BG George S. Greene (w)

60th New York: Col Abel Godard, Ltc John C. O. Redington
78th New York: Ltc Herbert von Hammerstein, Maj William H. Randall (w)
102nd New York: Col James C. Lane (w, July 2), Cpt Lewis R. Stegman
137th New York: Col David Ireland, Ltc Koert S. Van Voorhees (w)
149th New York: Ltc Charles B. Randall (w)

| Reporting directly

| Lockwood's Brigade

BG Henry H. Lockwood

1st Maryland, Potomac Home Brigade: Col William P. Maulsby
1st Maryland, Eastern Shore: Col James Wallace
150th New York: Col John H. Ketcham, Ltc Charles G. Bartlett, Maj Alfred Baker Smith

| Artillery Brigade

Lt Edward D. Muhlenberg

1st New York Light, Battery M: Lt Charles E. Winegar
Pennsylvania Light, Battery E: Lt Charles A. Atwell
4th United States, Battery F: Lt Sylvanus T. Rugg
5th United States, Battery K: Lt David H. Kinzie

Cavalry Corps

MG Alfred Pleasonton

Headquarter Guards:

1st Ohio Cavalry, Company A: Cpt Noah Jones (Second Division)
1st Ohio Cavalry, Company C: Cpt Samuel N. Stanford (Third Division)

{| class="wikitable"

! style="width:25%;"|Division

! style="width:25%;"|Brigade

! Regiments and Others

| rowspan=3 |

First Division

BG John Buford

| 1st Brigade

Col William Gamble

3rd Indiana Cavalry (6 companies): Col George H. Chapman
8th Illinois Cavalry: Maj John L. Beveridge
8th New York Cavalry: Ltc William L. Markell
12th Illinois Cavalry (4 companies): Maj Charles Lemmon (mw)

| 2nd Brigade

Col Thomas Devin

6th New York Cavalry (6 companies): Maj William E. Beardsley
9th New York Cavalry: Col William Sackett
17th Pennsylvania Cavalry: Col Josiah H. Kellogg
3rd West Virginia Cavalry, Companies A and C: Cpt Seymour B. Conger

| Reserve Brigade

BG Wesley Merritt

6th Pennsylvania Cavalry: Maj James H. Haseltine
1st United States Cavalry: Cpt Richard S. C. Lord
2nd United States Cavalry: Cpt Theophilus F. Rodenbough
5th United States Cavalry: Cpt Julius W. Mason
6th United States Cavalry: Maj Samuel H. Starr (w), Lt Louis H. Carpenter, Lt Nicholas M. Nolan, Cpt Ira W. Claflin (w)

| rowspan=2 |

Second Division

BG David McMurtrie Gregg

| 1st Brigade

Col John B. McIntosh

1st Maryland Cavalry (11 companies): Ltc James M. Deems
Purnell (Maryland) Cavalry Legion, Company A: Cpt Robert E. Duvall
1st Massachusetts Cavalry: Ltc Greely S. Curtis
1st New Jersey Cavalry: Maj Myron H. Beaumont
1st Pennsylvania Cavalry: Col John P. Taylor
3rd Pennsylvania Cavalry: Ltc Edward S. Jones
3rd Pennsylvania Heavy Artillery, Section, Battery H: Cpt William D. Rank

| 3rd Brigade

Col John Irvin Gregg

1st Maine Cavalry (10 companies): Ltc Charles H. Smith
10th New York Cavalry: Maj Mathew Henry Avery
4th Pennsylvania Cavalry: Ltc William E. Doster
16th Pennsylvania Cavalry: Ltc John K. Robison

| rowspan=2 |

Third Division

BG Judson Kilpatrick

| 1st Brigade

BG Elon J. Farnsworth (k)

Col Nathaniel P. Richmond

5th New York Cavalry: Maj John Hammond
18th Pennsylvania Cavalry: Ltc William P. Brinton
1st Vermont Cavalry: Col Addison W. Preston
1st West Virginia Cavalry (10 companies): Col Nathaniel P. Richmond, Maj Charles E. Capehart

|2nd Brigade

BG George A. Custer

1st Michigan Cavalry: Col Charles H. Town, Ltc Peter Stagg (w)
5th Michigan Cavalry: Col Russell A. Alger, Ltc Ebenezer Gould (w), Maj Noah H. Ferry (k)
6th Michigan Cavalry: Col George Gray
7th Michigan Cavalry: (10 companies): Col William D. Mann

| rowspan=2 |

Horse Artillery

| 1st Brigade

Cpt James M. Robertson

9th Michigan Battery: Cpt Jabez J. Daniels
6th New York Battery: Cpt Joseph W. Martin
2nd United States, Batteries B and L: Lt Edward Heaton
2nd United States, Battery M: Lt Alexander C. M. Pennington, Jr.
4th United States, Battery E: Lt Samuel S. Elder

| 2nd Brigade

Cpt John C. Tidball

1st United States, Batteries E and G: Cpt Alanson M. Randol
1st United States, Battery K: Cpt William M. Graham, Jr.
2nd United States, Battery A: Lt John H. Calef

Artillery Reserve

BG Robert O. Tyler

Cpt James M. Robertson

Headquarter Guard:

32nd Massachusetts Infantry, Company C: Cpt Josiah C. Fuller

{| class="wikitable"

! style="width:30%;"|Brigade

! Batteries

| 1st Regular Brigade

Cpt Dunbar R. Ransom (w)

1st United States, Battery H: Lt Chandler P. Eakin (w), Lt Philip D. Mason
3rd United States, Batteries F and K: Lt John G. Turnbull
4th United States, Battery C: Lt Evan Thomas
5th United States, Battery C: Lt Gulian V. Weir (w)

| 1st Volunteer Brigade

Ltc Freeman McGilvery

Massachusetts Light, 5th Battery (E): Cpt Charles A. Phillips
Massachusetts Light, 9th Battery: Cpt John Bigelow (w), Lt Richard S. Milton
New York Light, 15th Battery: Cpt Patrick Hart (w), Lt Andrew R. McMahon
Pennsylvania Light, Battery C and Battery F: Cpt James Thompson (w)

| 2nd Volunteer Brigade

Cpt Elijah D. Taft

1st Connecticut Heavy, Battery B: Cpt Albert F. Brooker
1st Connecticut Heavy, Battery M: Cpt Franklin A. Pratt

| Train Guard

4th New Jersey Infantry (7 companies): Maj Charles Ewing

Notes

References

U.S. War Department, The War of the Rebellion: a Compilation of the Official Records of the Union and Confederate Armies. Washington, DC: U.S. Government Printing Office, 1880–1901.
Gettysburg National Military Park - The Army of the Potomac at Gettysburg
Civil War Trust - Gettysburg Union order of battle
Civilwarhome - Gettysburg Union order of battle
Gettysburg Discussion Group - Union order of battle
Eicher, John H. "Gettysburg Order of Battle" at Gettysburg Discussion Group website.

Abbreviations used

Military rank

Other

Army of the Potomac

General Staff and Headquarters

I Corps

II Corps

III Corps

V Corps

VI Corps

XI Corps

XII Corps

Cavalry Corps

Artillery Reserve

Notes

References

External links