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

First Division

Brigadier General Israel I. Stevens (k 9/1)

Colonel B. C. Christ (9/1 - 9/8)

Brigadier General Orlando Wilcox (after 9/8)

In September 1862 an artillery reserve was added to the division, and several regiments were shuffled to create a a third brigade.

First Brigade

Colonel B. C. Christ (9/1 & 9/8 - 9/24)

Colonel W. M. Fenton (9/1 - 9/8)

Colonel David Morrison (after 9/24)

8th Michigan Infantry Regiment

Lieutenant Colonel Frank Graves

to 2nd Bde. (see below)

17th Michigan Infantry Regiment

Colonel William H. Withington

from Michigan 8/27

20th Michigan Infantry Regiment

from Michigan 9/1

28th Massachusetts Infantry Regiment

Captain Andrew P. Caraher

79th New York Infantry Regiment

Lieutenant Colonel David Morrison

from 2nd Bde. (see below)

50th Pennsylvania Infantry Regiment

Major Edward Overton (w 9/17)

Captain William H. Diel (after 9/17)

to 2nd Bde. (see below)

Second Brigade

Colonel Thomas Welsh (until 9/24)

Colonel B. C. Christ (9/24 - 9/30)

Colonel W. M. Fenton (after 9/30)

8th Michigan Infantry Regiment

Lieutenant Colonel Frank Graves

from 1st Bde. (see above)

46th New York Infantry Regiment

Lieutenant Colonel Joseph Gerhardt

79th New York Infantry Regiment

Lieutenant Colonel David Morrison

to 1st Bde. (see above)

45th Pennsylvania Infantry Regiment

Lieutenant Colonel John I. Curtin

to 3rd Bde. (see above) 9/26

50th Pennsylvania Infantry Regiment

Major Edward Overton

from 1st Bde. (see above)

100th Pennsylvania Infantry Regiment

Lieutenant Colonel David A. Leckey

to 3rd Bde. (see above) 9/26

Third Brigade

Colonel Thomas Welch

created 9/26

36th Massachusetts Infantry Regiment

from Worcester 9/2

Lieutenant Colonel John I. Curtin

from 2nd Bde. (see above)

100th Pennsylvania Infantry Regiment

from 2nd Bde. (see above)

Artillery

2nd New York Artillery, Battery L

from Army Virginia, 1st Corps, 2nd Div.

Captain Asa M. Cook

from Dist. Washington, Sturgis' Bde.

Lieutenant Samuel N. Benjamin

from 5th Corps, Reserve Artillery, 4th Bde.