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

Third Division

Brigadier General Orlando B. Wilcox (until 9/2)

Brigadier General John Hartranft (9/2 - 9/13)

Brigadier General Edward Ferrero (after 9/13)

First Brigade (until 9/13)

Colonel B. C. Christ (until 9/13)

8th Michigan Infantry Regiment

27th Michigan Infantry Regiment

51st Pennsylvania Infantry Regiment

109th New York Infantry Regiment

to 1st Div., 1st Bde. 9/13

13th Ohio Cavalry (dismounted)

37th Wisconsin Infantry Regiment

38th Wisconsin Infantry Regiment

First Brigade (after 9/13)

Colonel O. P. Stearns (after 9/13)

27th United States Colored Troops

30th United States Colored Troops

from 4th Div., 1st Bde

39th United States Colored Troops

43rd United States Colored Troops

Second Brigade (until 9/12)

Colonel William Humphreys (until 9/12)

1st Michigan Sharpshooters Regiment

to 1st Div., 1st Bde. 9/13

2nd Michigan Infantry Regiment

to 1st Div., 1st Bde. 9/13

20th Michigan Infantry Regiment

to 1st Div., 1st Bde. 9/13

24th New York Cavalry (dismounted)

to 1st Div., 1st Bde. 9/13

46th New York Infantry Regiment

to 1st Div., 1st Bde. 9/13

79th New York Infantry Regiment

to 1st Div., 2nd Bde. 9/13

60th Ohio Infantry Regiment

to 1st Div., 1st Bde. 9/13

50th Pennsylvania Infantry Regiment

to 1st Div., 1st Bde. 9/13

Second Brigade (after 9/12)

Colonel C. S. Russell (after 9/12)

19th United States Colored Troops

23rd United States Colored Troops

28th United States Colored Troops

from 4th Div., 2nd Bde

29th United States Colored Troops

31st United States Colored Troops

Engineers

17th Michigan Infantry Regiment

to 1st Div. Engineers