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

Second Division

Brigadier General James B. Ricketts

Recreated from the Army of Virginia, 3rd Army Corps on September 12, 1862

First Brigade

Brigadier General Abram Duryea

97th New York Infantry Regiment

Major Charles Northrup

from Army Va., 3rd Corps, 2nd Div. 1st Bde.

104th New York Infantry Regiment

Major Lewis C. Skinner

105th New York Infantry Regiment

Lt. Colonel Howard Carroll (mw 9/17)

Captain John C. Whiteside (after 9/17)

107th Pennsylvania Infantry Regiment

Captain James MacThompson

Second Brigade

Colonel Wiliam H. Christian (9/12 - 9/17)

Colonel Peter Lyle (after 9/17)

26th New York Infantry Regiment

Lt. Colonel Richard Richardson

from Army Va., 3rd Corps, 2nd Div. 2nd Bde.

94th New York Infantry Regiment

Lieutenant Colonel Calvin Littlefield

88th Pennsylvania Infantry Regiment

Lt. Colonel George W. Gile (w 9/17)

Captain Carmack (w 9/17)

Captain Myers (after 9/17)

90th Pennsylvania Infantry Regiment

Colonel Peter Lyle (until 9/17)

Lieutenant Colonel Leech (after 9/17)

Third Brigade

Brigadier General G. L. Hartsuff (9/12 - 9/17)

Colonel R. Coulter (after 9/17)

16th Maine Infantry Regiment

Colonel Asa W. Wildes

from Army Va., 3rd Corps, 2nd Div. 3rd Bde.

12th Massachusetts Infantry Regiment

Major Elisha Burbank (mw 9/17)

Captain Benjamin Cook (after 9/17)

13th Massachusetts Infantry Regiment

Major Jacob Parker Gould

9th New York State Militia

Lieutenant Colonel William Atterbury

11th Pennsylvania Infantry Regiment

Colonel Richard Coulter (until 9/17)

Captain David M. Cook (after 9/17)

Artillery

1st Pennsylvania Lt. Artillery, Battery F

Captain Ezra W. Matthews

from Army Va., 3rd Corps, 2nd Div. Artillery

Pennsylvania Independent Battery C

Captain James Thompson

2nd Maine Battery

5th Maine Battery