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The following units and commanders fought in the Battle of Gettysburg of the American Civil War on the Union side. The Gettysburg Confederate order of battle is shown separately. When multiple names of commanders are shown, this indicates the succession of command through the three-day battle, (July 1–3 1863). The number of men (and for artillery, guns) present at the battle are given in parenthesis.
Army of the Potomac edit
General Staff and Headquarters edit
MG* George G. Meade, Commanding.
General Staff and Headquarters
- Chief of Staff: MG Daniel Butterfield
- Chief of Artillery: BG Henry J. Hunt
- Assistant Adjutant General: BG Seth Williams
- Chief Quartermaster: BG Rufus Ingalls
- Medical Director: Dr Jonathan Letterman
- Chief Signal Officer: Capt Lemuel B. Norton
- Chief Ordnance Officer: Lt John R. Edie (acting)
- Bureau of Military Information: Col George H. Sharpe
- Provost Marshal General: BG Marsena R. Patrick (1,528)
- 93rd New York: Col John S. Crocker (148)
- 8th U.S. (8 companies): Capt Edwin W. H. Read (401)
- 2nd Pennsylvania Cavalry: Col R. Butler Price (489)
- 6th Pennsylvania Cavalry, Companies E and I: Capt James Starr (81)
- Regular cavalry (detachments from 1st, 2nd, 5th, and 6th Regiments) (15)
- Chief of Engineers: BG Gouverneur K. Warren
- Engineer Brigade: BG Henry W. Benham
- 15th New York (3 companies): Maj Walter L. Cassin
- 50th New York: Col William H. Pettes
- U.S. Battalion: Capt George H. Mendell
- Guards and Orderlies
- Oneida (New York) Cavalry: Capt Daniel P. Mann (42)
I Corps edit
- Total: 12,596 men
- I Corps Commanders:
- MG John F. Reynolds (k) Note: General Reynolds was commanding the "left wing" of the Army of the Potomac, with operational control over the I, III, and XI Corps, and Brig. Gen. John Buford's cavalry division.
- MG Abner Doubleday
- MG John Newton Note: John Newton replaced Abner Doubleday on the Second Day of Battle
- General HQ: 1st Maine Cavalry, Company L: Capt Constantine Taylor (57)
| Division | Brigade | Regiments and Others |
|---|---|---|
|
First Division:
|
1st Brigade ("Iron Brigade"):
|
2nd Wisconsin:
Col Lucius Fairchild,
Maj John Mansfield,
Capt George H. Otis
(302)
|
| 2nd Brigade:
|
7th Indiana:
Col Ira G. Grover
(437)
| |
|
Second Division:
|
1st Brigade:
|
16th Maine:
Col Charles W. Tilden,
Maj Archibald D. Leavitt
(298)
|
| 2nd Brigade:
|
12th Massachusetts:
Col James L. Bates,
Ltc David Allen, Jr
(261)
| |
|
Third Division:
|
1st Brigade:
|
80th New York (20th Militia):
Col Theodore B. Gates
(287)
|
| 2nd Brigade:
|
143rd Pennsylvania:
Col Edmund L. Dana,
Ltc John D. Musser
(465)
| |
| 3rd Brigade 2nd Vermont Brigade:
|
12th Vermont:
Col Asa P. Blunt
(guarding baggage)
(641)
| |
| Artillery Brigade:
|
2nd Maine Light, Battery B:
Capt James A. Hall
(117, 6 x 3" rifle)
|
II Corps edit
- Total: 11,509 men
- II Corps Commanders:
- MG Winfield S. Hancock
- BG John Gibbon
- MG Winfield S. Hancock (w)
- BG William Hays
- General HQ: 6th New York Cavalry, Companies D and K: Capt Riley Johnson (64)
| Division | Brigade | Regiments and Others |
|---|---|---|
|
First Division:
|
1st Brigade:
|
5th New Hampshire:
Ltc Charles E. Hapgood
(182)
|
| 2nd Brigade ("Irish Brigade"):
|
28th Massachusetts:
Col Richard Byrnes
(224)
| |
| 3rd Brigade:
|
52nd New York:
Ltc Charles G. Freudenberg,
Capt William Scherrer
(134)
| |
| 4th Brigade:
|
27th Connecticut (2 companies):
Ltc Henry C. Merwin,
Maj James H. Coburn
(75)
| |
|
Second Division:
(3,606) |
1st Brigade:
|
19th Maine:
Col Francis E. Heath,
Ltc Henry W. Cunningham
(439)
|
| 2nd Brigade "Philadelphia Brigade":
|
69th Pennsylvania:
Col Dennis O'Kane,
Capt William Davis
(284)
| |
| 3rd Brigade:
|
19th Massachusetts:
Col Arthur F. Devereux
(163)
| |
| unattached |
Massachusetts Sharpshooters, 1st Company: Capt William Plumer, Lt Emerson L. Bicknell (42) | |
|
Third Division:
|
1st Brigade ("Gibraltar Brigade"):
|
14th Indiana:
Col John Coons
(236)
|
| 2nd Brigade:
|
14th Connecticut:
Maj Theodore G. Ellis
(200)
| |
| 3rd Brigade:
|
39th New York (4 companies):
Maj Hugo Hildebrandt
(269)
| |
| Artillery Brigade:
|
1st New York Light, Battery B:
Lt Albert S. Sheldon,
Capt James McKay Rorty,
Lt Robert E. Rogers
(114, 6 x 3" rifle)
|
III Corps edit
- Total: 10,726
- III Corps Commanders:
| Division | Brigade | Regiments and Others |
|---|---|---|
|
First Division:
|
1st Brigade:
|
57th Pennsylvania (8 companies):
Col Peter Sides,
Capt Alanson H. Nelson
(207)
|
| 2nd Brigade:
|
20th Indiana:
Col John Wheeler,
Ltc William C. L. Taylor
(401)
| |
| 3rd Brigade:
|
17th Maine:
Ltc Charles B. Merrill
(350)
| |
|
Second Division:
|
1st Brigade:
|
1st Massachusetts:
Ltc Clark B. Baldwin
(321)
|
| 2nd Brigade ("Excelsior Brigade"):
|
70th New York:
Col J. Egbert Farnum
(288)
| |
| 3rd Brigade:
|
2nd New Hampshire:
Col Edward L. Bailey
(354)
| |
|
Third Division:
|
1st Brigade: |
10th Vermont:
Ltc William Wirt Henry
|
| 2nd Brigade:
|
6th Maryland:
Col John Watt Horn
| |
| 3rd Brigade:
|
126th Ohio:
Ltc William H. Harlan
| |
| Artillery Brigade:
|
1st New Jersey Light, Battery B:
Capt A. Judson Clark,
Lt Robert Sims
(143, 6 x 10pdr Parrot)
|
V Corps edit
- Total: 10,997
- V Corps Commander:
- MG George Sykes
- General HQ:
- 12th New York Infantry, Companies D and E: Capt Henry W. Rider (109)
- 7th Pennsylvania Cavalry, Companies D and H: Capt William Thompson (78)
| Division | Brigade | Regiments and Others |
|---|---|---|
|
First Division:
|
1st Brigade:
|
18th Massachusetts:
Col Joseph Hayes
(139)
|
| 2nd Brigade:
|
9th Massachusetts:
Col Patrick R. Guiney
(412)
| |
| 3rd Brigade:
|
20th Maine:
Col Joshua L. Chamberlain
(386)
| |
|
Second Division:
|
1st Brigade:
|
3rd US (6 companies):
Capt Henry W. Freedley,
Capt Richard G. Lay
(300)
|
| 2nd Brigade:
|
2nd US (6 companies):
Maj Arthur T. Lee,
Capt Samuel A. McKee
(197)
| |
| 3rd Brigade:
|
140th New York:
Col Patrick "Paddy" O'Rorke,
Ltc Louis Ernst
(449)
| |
|
Third Division:
|
1st Brigade:
|
1st Pennsylvania Reserves (9 companies):
Col William C. Talley
(379)
|
| 3rd Brigade:
|
5th Pennsylvania Reserves:
Ltc George Dare
(285)
| |
| Artillery Brigade:
|
3rd Massachusetts, Battery C:
Lt Aaron F. Walcott
(115, 6 x Napoleon)
|
VI Corps edit
- VI Corps Commander:
- General HQ:
- 1st New Jersey Cavalry, Company L: Capt William S. Craft
- 1st Pennsylvania Cavalry, Company H
| Division | Brigade | Regiments and Others |
|---|---|---|
|
First Division:
|
1st Brigade (First New Jersey Brigade): |
1st New Jersey:
Ltc William Henry, Jr.
|
| 2nd Brigade: |
5th Maine:
Col Clark S. Edwards
| |
| 3rd Brigade: |
6th Maine:
Col Hiram Burnham
| |
| Provost Guard |
4th New Jersey (3 companies): Capt William R. Maxwell | |
|
Second Division:
|
2nd Brigade ("Vermont Brigade"):
|
2nd Vermont:
Col James H. Walbridge
|
| 3rd Brigade: |
7th Maine (6 companies):
Ltc Seldon Connor
| |
|
Third Division:
|
1st Brigade: |
65th New York:
Col Joseph E. Hamblin
|
| 2nd Brigade:
|
7th Massachusetts:
Ltc Franklin P. Harlow
| |
| 3rd Brigade:
|
62nd New York:
Col David J. Nevin,
Ltc Theodore B. Hamilton
| |
| Artillery Brigade: |
1st Massachusetts Light, Battery A:
Capt William H. McCartney
|
XI Corps edit
- Total: 9,926
- XI Corps Commanders:
- MG Oliver O. Howard
- MG Carl Schurz
- General HQ:
- 1st Indiana Cavalry, Companies I and K: Capt Abram Sharra
- 8th New York Infantry (1 company): Lt Hermann Foerster
| Division | Brigade | Regiments and Others |
|---|---|---|
|
First Division:
|
1st Brigade:
|
41st New York (9 companies)(Zouaves):
Ltc Detleo von Einsiedel (218)
|
| 2nd Brigade:
|
17th Connecticut:
Ltc Douglas Fowler,
Maj Allen G. Brady (386)
| |
|
Second Division:
|
1st Brigade:
|
134th New York:
Ltc Allan H. Jackson (400)
|
| 2nd Brigade:
|
33rd Massachusetts:
Col Adin B. Underwood (491)
| |
|
Third Division:
|
1st Brigade:
|
82nd Illinois:
Ltc Edward S. Salomon (316)
|
| 2nd Brigade:
|
58th New York:
Ltc August Otto,
Capt Emil Koenig (194)
| |
| Artillery Brigade:
|
1st New York Light, Battery I:
Capt Michael Wiedrich (141, 6 x 3" Rifle)
|
XII Corps edit
- Total: 9,986
- XII Corps Commanders:
- Provost Guard: 10th Maine (4 companies): Capt John D. Beardsley
| Division | Brigade | Regiments and Others |
|---|---|---|
|
First Division:
|
1st Brigade:
|
5th Connecticut:
Col Warren W. Packer (221)
|
| 2nd Brigade:
|
1st Maryland, Potomac Home Brigade:
Col William P. Maulsby (739)
| |
| 3rd Brigade:
|
27th Indiana:
Col Silas Colgrove,
Ltc John R. Fesler (339)
| |
|
Second Division:
|
1st Brigade:
|
5th Ohio:
Col John H. Patrick (302)
|
| 2nd Brigade:
|
29th Pennsylvania:
Col William Rickards, Jr. (357)
| |
| 3rd Brigade:
|
60th New York:
Col Abel Godard (273)
| |
| Artillery Brigade:
|
1st New York Light, Battery M:
Lt Charles E. Winegar (89, 6 x Napoleon)
|
Cavalry Corps edit
- Cavalry Corps Commanders:
| Division | Brigade | Regiments and Others |
|---|---|---|
|
First Division:
|
1st Brigade:
|
8th Illinois:
Maj John Lourie Beveridge
|
| 2nd Brigade:
|
6th New York:
Maj William E. Beardsley
| |
| Reserve Brigade: |
6th Pennsylvania:
Maj James H. Haseltine
| |
|
Second Division:
|
1st Brigade: |
1st Maryland (11 companies):
Ltc James M. Deems
|
| 2nd Brigade:
|
(Not at Gettysburg) | |
| 3rd Brigade:
|
1st Maine (10 companies):
Ltc Charles H. Smith
| |
|
HQ Guard |
1st Ohio, Company A: Capt Noah Jones | |
|
Third Division:
|
1st Brigade:
|
5th New York:
Maj John Hammond
|
| 2nd Brigade ("Michigan Brigade"): |
1st Michigan:
Col Charles H. Town
| |
|
HQ Guard |
1st Ohio, Company C: Capt Samuel N. Stanford | |
| 1st Brigade:
|
9th Michigan Battery:
Capt Jabez J. Daniels
| |
| 2nd Brigade:
|
1st US, Batteries E and G:
Capt Alanson M. Randol
|
Artillery Reserve edit
- Commanders:
- BG Robert O. Tyler
- Capt James M. Robertson
- HQ Guard: 32nd Massachusetts Infantry, Company C: Capt Josiah C. Fuller
| Brigade | Batteries |
|---|---|
| 1st Regular Brigade:
|
1st US, Battery H:
Lt Chandler P. Eakin,
Lt Philip D. Mason
|
| 1st Volunteer Brigade: |
5th Massachusetts Light Battery E:
Capt Charles A. Phillips
|
| 2nd Volunteer Brigade:
|
1st Connecticut Heavy, Battery B:
Capt Albert F. Brooker
|
| 3rd Volunteer Brigade:
|
1st New Hampshire Independent:
Capt Frederick M. Edgell
|
| 4th Volunteer Brigade:
|
6th Maine Light, Battery F:
Lt Edwin B. Dow
|
|
Train Guard |
4th New Jersey Infantry (7 companies): Maj Charles Ewing |
* Military rank abbreviations used edit
- Gen = General
- MG = Major General
- BG = Brigadier General
- Col = Colonel
- Ltc = Lieutenant Colonel
- Maj = Major
- Cpt = Captain
- Lt = Lieutenant
- Sgt = Sergeant
References edit
- Eicher, John H., Gettysburg Order of Battle at Gettysburg Discussion Group website.
- U.S. War Department, The War of the Rebellion: a Compilation of the Official Records of the Union and Confederate Armies], U.S. Government Printing Office, 1880–1901.