U.S. Army - 22nd Army Corps - Department of Washington

Casey's Division

Major General Silas Casey

First Brigade

Col. Francis Fessenden

25th Maine Infantry Regiment

27th Maine Infantry Regiment

Second Brigade

Brig. Gen. Edwin H. Stoughton

12th Vermont Infantry Regiment

13th Vermont Infantry Regiment

14th Vermont Infantry Regiment

15th Vermont Infantry Regiment

16th Vermont Infantry Regiment

Third Brigade

Brig. Gen. Alexander Hays

39th New York Infantry Regiment

111th New York Infantry Regiment

125th New York Infantry Regiment

126th New York Infantry Regiment

Artillery

2nd Connecticut Independent Battery

11th Massachusets Independent Battery

1st Rhode Island Light Artillery, Battery H

Keystone (Pennsylvania) Battery