Gettysburg Union order of battle

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 command succession of command during the three-day battle (July 1–3, 1863). Order of battle compiled from the army organization during the battle,^[1] the casualty returns^[2] and the reports.^[3]

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 ^[4]

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^[5]

Guards and Orderlies:

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

Engineer Brigade: BG Henry W. Benham ^[6]

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

I Corps

MG John F. Reynolds (k) ^[7]
MG Abner Doubleday ^[8]
MG John Newton
General Headquarters:

1st Maine Cavalry, Company L: Cpt Constantine Taylor

Division	Brigade	Regiments and Others
First Division 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)
First Division BG James S. Wadsworth	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 John William Hofmann
Second Division 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
Second Division BG John C. Robinson	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:^[9] 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,^[10] Maj Alfred J. Sellers
Third Division MG Abner Doubleday BG Thomas A. Rowley MG Abner Doubleday	1st Brigade Col Chapman Biddle BG Thomas A. Rowley (w) Col Chapman Biddle (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 ^[11] 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 Greenleaf 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^[12] (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) ^[13]

Division	Brigade	Regiments and Others
First Division 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,^[14] 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
Second Division 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:^[15] 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 J. 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
Third Division 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,^[16] 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 ^[17] 108th New York: Ltc Francis E. Pierce
	3rd Brigade Col George L. Willard (k) Col Eliakim Sherrill ^[18] 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 Cpt John G. Hazard	1st New York Light, Battery B:^[19] 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)

Division	Brigade	Regiments and Others
First Division MG David B. Birney BG J. H. Hobart Ward (w)	1st Brigade BG Charles K. Graham (w&c) Col Andrew H. Tippin ^[20] 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 ^[21] 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 A. 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.^[22] 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
Second Division BG Andrew A. Humphreys	1st Brigade ^[23] 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

Division	Brigade	Regiments and Others
First Division 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:^[24] Col Patrick R. Guiney 32nd Massachusetts: Col George L. 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:^[25] Ltc Norval E. Welch 44th New York: Col James C. Rice, Ltc Freeman Conner, Maj Edward B. Knox 83rd Pennsylvania: Cpt Orpheus S. Woodward
Second Division 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
Third Division ^[26] 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
Third Division ^[26] BG Samuel W. Crawford	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

Division	Brigade	Regiments and Others
First Division 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 ^[27] Col Emory Upton ^[28]	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
Second Division ^[29] 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
Second Division ^[29] BG Albion P. Howe	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
Third Division 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 ^[30] 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 ^[31]
MG Carl Schurz

General Headquarters:

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

Division	Brigade	Regiments and Others
First Division BG Francis C. Barlow (w&c) BG Adelbert Ames	1st Brigade Col Leopold von Gilsa	41st New York (9 companies): Ltc Detleo 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
Second Division 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
Second Division BG Adolph von Steinwehr	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
Third Division 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 ^[32]
BG Alpheus S. Williams

Provost Guard:

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

Division	Brigade	Regiments and Others
First Division 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
First Division BG Alpheus S. Williams BG Thomas H. Ruger	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
Second Division 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 ^[33]	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 ^[34] 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 B. 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, Company A: Cpt Noah Jones (Second Division)
1st Ohio, Company C: Cpt Samuel N. Stanford (Third Division)

Division	Brigade	Regiments and Others
First Division BG John Buford	1st Brigade Col William Gamble	8th Illinois: Maj John L. Beveridge 12th Illinois (4 companies) and 3rd Indiana (6 companies): Col George H. Chapman, Maj Charles Lemmon (mw) 8th New York: Ltc William L. Markell
	2nd Brigade Col Thomas Devin	6th New York (6 companies): Maj William E. Beardsley 9th New York: Col William Sackett 17th Pennsylvania: Col Josiah H. Kellogg 3rd West Virginia, Companies A and C: Cpt Seymour B. Conger
	Reserve Brigade BG Wesley Merritt	6th Pennsylvania: Maj James H. Haseltine 1st United States: Cpt Richard S. C. Lord 2nd United States: Cpt Theophilus F. Rodenbough 5th United States: Cpt Julius W. Mason 6th United States: Maj Samuel H. Starr (w), Lt Louis H. Carpenter, Lt Nicholas M. Nolan, Cpt Ira W. Claflin (w)
Second Division ^[35] BG David McMurtrie Gregg	1st Brigade Col John B. McIntosh	1st Maryland (11 companies): Ltc James M. Deems Purnell (Maryland) Legion, Company A: Cpt Robert E. Duvall 1st Massachusetts: Ltc Greely S. Curtis^[36] 1st New Jersey: Maj Myron H. Beaumont 1st Pennsylvania: Col John P. Taylor 3rd Pennsylvania: Ltc Edward S. Jones 3rd Pennsylvania Heavy Artillery, Section, Battery H: Cpt William D. Rank ^[37]
Second Division ^[35] BG David McMurtrie Gregg	3rd Brigade Col John Irvin Gregg	1st Maine (10 companies): Ltc Charles H. Smith 10th New York: Maj Mathew Henry Avery 4th Pennsylvania: Ltc William E. Doster 16th Pennsylvania: Ltc John K. Robison
Third Division BG Judson Kilpatrick	1st Brigade BG Elon J. Farnsworth (k) Col Nathaniel P. Richmond	5th New York: Maj John Hammond 18th Pennsylvania: Ltc William P. Brinton 1st Vermont: Col Addison W. Preston 1st West Virginia (10 companies): Col Nathaniel P. Richmond, Maj Charles E. Capehart
Third Division BG Judson Kilpatrick	2nd Brigade BG George A. Custer	1st Michigan: Col Charles H. Town, Ltc Peter Stagg (w) 5th Michigan: Col Russell A. Alger, Ltc Ebenezer Gould (w), Maj Noah H. Ferry (k) 6th Michigan: Col George Gray 7th Michigan: (10 companies): Col William D. Mann
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
Horse Artillery	2nd Brigade ^[38] 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

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 ^[39] 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 & Battery F: Cpt James Thompson (w)
2nd Volunteer Brigade Cpt Elijah D. Taft	1st Connecticut Heavy, Battery B: Cpt Albert F. Brooker ^[40] 1st Connecticut Heavy, Battery M: Cpt Franklin A. Pratt ^[40] Connecticut Light, 2nd Battery: Cpt John W. Sterling New York Light, 5th Battery: Cpt Elijah D. Taft
3rd Volunteer Brigade Cpt James F. Huntington	New Hampshire Light, 1st Battery: Cpt Frederick M. Edgell 1st Ohio Light, Battery H: Lt George W. Norton 1st Pennsylvania Light, Batteries F and G: Cpt R. Bruce Ricketts West Virginia Light, Battery C: Cpt Wallace Hill
4th Volunteer Brigade Cpt Robert H. Fitzhugh	Maine Light, 6th Battery (F): Lt Edwin B. Dow Maryland Light, Battery A: Cpt James H. Rigby New Jersey Light, 1st Battery: Lt Augustine N. Parsons 1st New York Light, Battery G: Cpt Nelson Ames 1st New York Light, Battery K: Cpt Robert H. Fitzhugh ^[41]
Train Guard	4th New Jersey Infantry (7 companies): Maj Charles Ewing

Notes

↑ Official Records, Series I, Volume XXVII, Part 1, pages 155-168; Gettysburg National Military Park-Army of the Potomac
↑ Official Records, Series I, Volume XXVII, Part 1, pages 173-187
↑ Official Records, Series I, Volume XXVII, Part 1, pages 5-14
↑ 93rd New York and 8th United States not engaged
↑ detachments from 1st, 2nd, 5th, and 6th Regiments
↑ not engaged. With the exception of the regular battalion, it was July 1, and while at Beaver Dam Creek (Maryland), ordered to Washington D.C. , where it arrived July 3.
↑ Major General Reynolds, was killed July 1, while in command of the left wing of the army (I, III, and XI Corps and First Division, Cavalry Corps)
↑ Major General Doubleday commanded the Corps July 1, and Major General Newton, who was assigned to that command on the 1st , superseded him July 2
↑ transferred, in afternoon of July 1, to the First Brigade
↑ temporarily transferred to the First Brigade
↑ arrived on the evening of July 1 and did not take part on the first day of the battle ; 12th Vermont and 15th Vermont were detached as train guard
↑ After the death of General Reynolds, General Hancock was assigned to the command of all troops on the field of battle , relieving General Howard, who had succeeded General Reynolds. General Gibbon, of the Second Division, assumed command of the corps. These assignments terminated on the evening of July 1. Similar changes in commanders occurred during the battle of the 2nd, when General Hancock was put in command of the Third Corps in addition to that of his own. He was wounded on the 3rd, and Brigadier General William Hays was assigned to the command of the corps.
↑ under the command of General Patrick (Provost Marshal General of the Army) during the battle
↑ Col McKeen was placed in temporary command of the 148th Pennsylvania Infantry because Colonel James Addams Beaver was ill. Col Edward E. Cross believed that Ltc McFarlane was too inexperienced to lead the regiment.
↑ 2nd Company Minnesota Sharpshooters attached
↑ arrested by Hancock on July 2; restored on July 4
↑ served as Provost Guard during the battle
↑ arrested by Hancock; released July 3 upon application by Hays and MacDougall
↑ Transferred from Artillery Reserve, July 1; 14th New York Battery attached
↑ relieved on July 3
↑ also commanded 141st Pennsylvania
↑ Cpt Fritz commanded the regiment after Maj Moore was wounded; Maj Moore returned to command on July 3
↑ The 84th Pennsylvania guarded the corps trains, and was not engaged in the battle.
↑ on picket duty on July 2; rejoined brigade after the fighting of the second day of the battle had ceased
↑ Brady's Company Michigan Sharpshooters attached
↑ joined corps June 28. The Second Brigade left in the Department of Washington
↑ Also in command of the Third Brigade, Third Division, on July 3,
↑ Upton commanded the Brigade for part of time on July 1
↑ no First Brigade in division
↑ The 102nd Pennsylvania Infantry guarded the wagon trains at Westminster, and was not engaged in the battle. However, a detachment of 103 men commanded by Lt Robert W. Lyon was sent as a guard with a supply train and placed on defensive line north of Round Top.
↑ During the interval between the death of General Reynolds and the arrival of General Hancock on the afternoon of July 1, all the troops on the field of battle were commanded by General Howard, General Schurz taking command of the Eleventh Corps, and General Schimmelfennig of the Third Division
↑ Exercised command of the right wing of the army during a part of the battle. But see Slocum to Meade, December 30, 1863 and Meade to Slocum, February 25, 1864
↑ Kane returned to the army at Gettysburg on July 2, but he had to share command with Cobham on account of sickness
↑ Unassigned during progress of battle; afterward attached to First Division, as Second Brigade. The command theretofore known as the Second Brigade had previously been consolidated with the First Brigade
↑ The Second Brigade (2nd and 4th New York, 6th Ohio and 8th Pennsylvania) under Colonel Pennock Huey was at Westminster, and not engaged in the battle
↑ Served with VI Corps, and on the right flank.
↑ Served as light artillery.
↑ Battery C, 3rd United States was with the Second Brigade, Second Division and not engaged in the Battle
↑ 10th New York Battery attached
1 2 not engaged
↑ 11th New York Battery attached

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.

External links

Wikimedia Commons has media related to Battle of Gettysburg.

Battle of Gettysburg
Background	Civil War Eastern Theater Pennsylvania Adams County Campaign template box Battlefield (timeline) Armies Northern Virginia Potomac Leaders/Orders of battle Confederate Union
Engagements	1st day 2nd day: Assaults Hood Mclaws Anderson Ewell's demonstration 3rd day: Longstreet's Assault Artillery barrage Pickett's Charge East cavalry battle Well's cavalry charge
Combat areas	Angle (Copse of trees), High-water mark Barlow Knoll Biesecker Woods Big Round Top Borough Cavalry fields Cemetery Hill Cemetery Ridge Culp's Hill Devil's Den Evergreen Cemetery Little Round Top McMillan Woods McPherson's Ridge Oak Ridge Peach Orchard Pitzer Woods Plum Run Railway cut Seminary Ridge Slaughter Pen Spangler's Spring Spangler Woods Stevens Creek Valley of Death Warfield Ridge Weikert Hill
Aftermath	Retreat Camp Letterman Soldier's Cemetery Everett Oration Gettysburg Address Memorial Association Reunions 1888 25th 1913 50th 1938 75th 1895 National Park (parkitecture) 1975 Historic District 1962 Cyclorama Bldg 2008 Museum & Visitor Center Coins 1936 half 2011 quarter
Media	1883 cyclorama 1898 poem Films 1913 (lost) 1955 documentary 1993 2011 documentary The Killer Angels Gettysburg: A Novel… "The Death Merchant" (TV episode) "Gettysburg" (The Outer Limits) "The Wheatfield at Gettysburg" (TV) Games: Gettysburg Gettysburg (1863) Cemetery Hill Sid Meier's Gettysburg! Terrible Swift Sword Battleground 2: Gettysburg Devil's Den Enduring Valor: Gettysburg in Miniature
Gettysburg textbooks from Wikibooks Gettysburg news stories from Wikinews Gettysburg images and media from Commons

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