U.S. Army - Army of the Potomac

Headquarters

Headquarters Escort

Oneida (New York) Cavalry Company

Provost Guard

Brigadier General Marsena L. Patrick

1st Massachusetts Cavalry, Cos. C&D

80th New York Infantry Regiment

3rd Pennsylvania Cavalry Regiment

68th Pennsylvania Infantry Regiment

114th Pennsylvania Infantry Regiment

Volunteer Engineer Brigade

15th New York Engineer Battalion

50th New York Engineer Regiment

Regular Engineer Battalion

Artillery Reserve

Brigadier General Robert O. Tyler

First Brigade

Second Brigade

brigades dissolved

Third Brigade