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

First Division

Colonel Paul Frank (to 1/9)

Colonel H. L. Brown (1/9 - 1/15)

Brigadier General J. C. Caldwell (after 1/15)

First Brigade

Colonel H. B. McKean

26th Michigan Infantry Regiment

61st New York Infantry Regiment

81st Pennsylvania Infantry Regiment

140th Pennsylvania Infantry Regiment

Second Brigade

Colonel Patrick Kelly (until 1/12)

Colonel R. Byrnes (after 1/12)

28th Massachusetts Infantry Regiment

63rd New York Infantry Regiment

69th New York Infantry Regiment

88th New York Infantry Regiment

116th Pennsylvania Infantry Regiment

Third Brigade

Colonel Paul Frank (until 1/17)

Colonel J. A. Beaver (after 1/17)

52nd New York Infantry Regiment

57th New York Infantry Regiment

66th New York Infantry Regiment

148th Pennsylvania Infantry Regiment

Fourth Brigade

Colonel J. R. Brooke

27th Connecticut Infantry Regiment

2nd Delaware Infantry Regiment

64th New York Infantry Regiment

53rd Pennsylvania Infantry Regiment

145th Pennsylvania Infantry Regiment