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Battle of Gettysburg
Union I Corps

Maj. Gen John F. Reynolds (k)

Maj. Gen. Abner Doubleday

Maj. John Newton

General Headquarters

1st Maine Cavalry, Company L

Capt. Constantine Taylor

1st Division

Brig. Gen. James S. Wadsworth

1st Brigade

Brig. Gen. Solomon (w)

Col. William W. Robinson

19th Indiana Infantry

Col. Samuel J. Williams (w)

Lieut. Col. Williams W. Dudley (w)

Maj. John M. Lindley (w)

24th Michigan Infantry

Col. Henry A. Morrow (w & c)

Lieut. Col. Mark Flanigan (w)

Maj. Edwin B. Wight (w)

Capt. Albert M. Edwards

2nd Wisconsin Infantry

Col. Lucius Fairchild (w & c)

Lieut. Col. George H. Stevens (mw)

Maj. John Mansfield (w)

Capt. George H. Otis

6th Wisconsin Infantry

Lieut. Col. Rufus Dawes

Maj. John F. Hauser

7th Wisconsin Infantry

Col. William W. Robinson

Lieut. Col. John B. Callis (w & c)

Maj. Mark Cinnicum (w)

2nd Brigade

Brig. Gen. Lysander Cutler

7th Indiana Infantry

Col. Ira G. Grover

76th New York Infantry

Maj. Andrew J. Grover (k, July 1st)

Capt. John E. Cook (w)

84th New York (14th Militia)

Col. Edward B. Fowler (w)

Lieut. Col. R. G. Jordan (w)

95th New York Infantry

Col. George H. Biddle (w, July 1st)

Maj. Edward Pye

147th New York Infantry

Lieut. Col. Francis C. Miller (w)

Maj. George Harney

56th Pennsylvania (9 companies)

Col. John William Hofmann

2nd Division

Brig. Gen. John C. Robinson

1st Brigade

Brig. Gen. 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 Infantry

Col. Charles W. Tilden (c)

Capt. Daniel Marston

13th Massachusetts Infantry

Col. Samuel H. Leonard

Lieut. Col. Nathaniel W. Batchelder

94th New York Infantry

Col. Adrian R. Root (w & c) July 1st

Maj. Samuel A. Moffett

104th New York Infantry

Col. Gilbert G. Prey

Lieut. Col. Henry Tuthill (w)

107th Pennsylvania Infantry

Lieut. Col. James McThomson (w, July1)

Capt. Emanuel D. Roath

2nd Brigade

Brig. Gen. Henry Baxter

12th Massachusetts Infantry

Col. James Bates (w)

83rd New York (9th Militia)

Lieut. Col. Joseph A. Moesch

97th New York Infantry

Col. Charles Wheelock (w & c, July 1st)

Lieut. Col. John P. Spofford (c)

Maj. Charles B. Northrup

11th Pennsylvania Infantry

Col. Richard Coulter

Capt. Benjamin F. Haines (w)

Capt. John B. Overmyer

88th Pennsylvania Infantry

Maj. Benezet F. Foust (w, July 1st)

Capt. Edmund A. Mass (c)

Capt. Henry Whiteside

90th Pennsylvania Infantry

Col. Peter Lyle

Maj. Alfred J. Sellers

Artillery Brigade

Col. Charles S. Wainwright

Maine Light, 2nd Battery (B)

Capt. James A. Hall

Maine Light, 5th Battery (E)

Capt. Greenlief T. Stevens (w)

Lieut. Edward N. Whittier

1st New York Light, Battery E & Battery L

Capt. Gilbert H. Reynolds (w, July 1st)

Lieut. George Breck

1st Pennsylvania Light, Battery B

Capt. James H. Cooper

4th U.S., Battery B

Lieut. James Stewart (w)

Lieut. James Davison (w)

3rd Division

Maj. Gen. Abner Doubleday

Brig. Gen. Thomas A. Rowley

1st Brigade

Col Chapman Biddle (w)

Brig. Gen. Thomas A. Rowley

80th New York (20th Militia)

Col. Theodore B. Gates

Maj. Walter A. Van Rensselaer (w)

121st Pennsylvania Infantry

Col. Chapman Biddle

Maj. Alexander Biddle

142nd Pennsylvannia

Col. Robert P. Cummins (mw)

Lieut. Col. Alfred B. McCalmont

Maj. Horatio N. Warren

151st Pennsylvania Infantry

Lieut. Col. George F. McFarland (w)

Capt. Walter L. Owens

Col. Harrison Allen

2nd Brigade

Col. Roy Stone (w)

Col. Langhorne Wister (w)

Col. Edmund L. Dana

143rd Pennsylvania Infantry

Col. Edmund L. Dana

Lieut. Col. John D. Musser (w)

149th Pennsylvania Infantry

Lieut. Col. Walton Dwight (w)

Capt. James Glenn

150th Pennsylvania Infantry

Col. Langhorne Wister

Lieut. Col Henry S. Huidekoper (w)

Maj. Thomas Chamberlin (w)

Capt. Cornelius C. Widdis (c)

Capt. George W. Jones

3rd Brigade

Brig. Gen. George J. Stannard (w)

Col. Francis V. Randall

13th Vermont Infantry

Col. Francis V. Randall

Lieut. Col. William D. Munson (w)

Maj. Joseph J. Boynton

14th Vermont Infantry

Col. William T. Nichols

Lieut. Col. Charles W. Rose

16th Vermont Infantry

Col. Wheelock G. Veazey

Maj. William Rounds

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