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

Second Division

Brigadier General Romeyn B. Ayres

First Brigade

Lt. Colonel E. S. Otis (10/1)

Major James Grindley (10/1 - 10/3)

Colonel F. Winthrop (after 10/3)

5th New York Veteran Infantry

15th New York Heavy Artillery

2nd United States Infantry Regiment

8th United States Infantry Regiment

10th United States Infantry Regiment

to Army Headquarers

11th United States Infantry Regiment

12th United States Infantry Regiment

14th United States Infantry Regiment

17th United States Infantry Regiment

Second Brigade

Colonel S. A. Graham (to 10/24)

Colonel A. W. Dennison (after 10/24)

1st Maryland Infantry Regiment

4th Maryland Infantry Regiment

7th Maryland Infantry Regiment

8th Maryland Infantry Regiment

Purnell Maryland Legion

mustered out 10/24

Third Brigade

Colonel A. H. Grimshaw

3rd Delaware Infantry

4th Delaware Infantry

157th Pensylvania Infantry Regiment

190th Pensylvania Infantry Regiment

191st Pensylvania Infantry Regiment

210th Pensylvania Infantry Regiment