U.S. Army - Army of the Potomac - Second Army Corps

First Division

Brigadier General Israel B. Richardson (to 7/17)

Brigadier General George Stoneman (after 7/17)

First Brigade

Brigadier General J. C. Caldwell

5th New Hampshire Infantry Regiment

7th New York Infantry Regiment

Colonel George Von Schack

61st New York Infantry Regiment

81st Pennsylvania Infantry Regiment

Colonel Charles F. Johnson

Second Brigade "Irish Brigade"

Brigadier General T. F. Meagher (until 7/16)

Colonel R. Nugent (after 7/16)

29th Massachusetts Infantry Regiment

63rd New York Infantry Regiment

69th New York Infantry Regiment

88th New York Infantry Regiment

Third Brigade

Brigadier General W. H. French (until 7/20)

Colonel J. R. Brooke (after 7/20)

2nd Delaware Infantry Regiment

Colonel Henry W. Wharton

52nd New York Infantry Regiment

57th New York Infantry Regiment

64th New York Infantry Regiment

66th New York Infantry Regiment

53rd Pennsylvania Infantry Regiment

Colonel John R. Brooke

Artillery

Battery B, 1st New York Artillery

Battery G, 1st New York Artillery

4th United States Artillery,
Batteries A & C