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

Second Division

Brigadier General John C. Robinson

First Brigade

Colonel Adrian R. Root (until 5/11)

Colonel Thomas F. McCoy (5/11 - 5/21)

Colonel S. H. Leonard (after 5/21)

16th Maine Infantry Regiment

Colonel Charles W. Tilden

13th Massachusetts Infantry Regiment

Colonel S. H. Leonard

from 3rd Brigade (see below)

94th New York Infantry Regiment

Captain Samuel A. Moffett

to Army Potomac Provost Guard 5/11

104th New York Infantry Regiment

Colonel Gilbert G. Prey

107th Pennsylvania Infantry Regiment

Colonel Thomas F. McCoy

Second Brigade

Brigadier General H. Baxter

12th Massachusetts Infantry Regiment

Colonel James L. Bates

26th New York Infantry Regiment

Lt. Colonel Gilbert S. Jennings

mustered out 5/28

83rd New York Infantry Regiment

Lt. Colonel Joseph A. Moesch

from 3rd Brigade (see below)

97th New York Infantry Regiment

Colonel Charles Wheelock

from 3rd Brigade (see below)

11th Pennsylvania Infantry Regiment

Colonel Richard Coulter

from 3rd Brigade (see below)

88th Pennsylvania Infantry Regiment

Lt. Colonel Louis Wagner

from 3rd Brigade (see below)

90th Pennsylvania Infantry Regiment

Colonel Peter Lyle

136th Pennsylvania Infantry Regiment

Colonel Thomas M. Bayne

mustered out 5/29

Third Brigade

Colonel S. H. Leonard         (brigade discontinued 5/22)

13th Massachusetts Infantry Regiment

Lt. Colonel N. Walter Batchelder

to 1st Brigade (see above)

83rd New York Infantry Regiment

Lt. Colonel Joseph A. Moesch

to 2nd Brigade (see above)

97th New York Infantry Regiment

Colonel Charles Wheelock

to 2nd Brigade (see above)

11th Pennsylvania Infantry Regiment

Colonel Richard Coulter

to 2nd Brigade (see above)

88th Pennsylvania Infantry Regiment

Colonel Louis Wagner

to 2nd Brigade (see above)

Artillery

Captain Dunbar R. Ransom

Pennsylvania Independent Battery C

Captain James Thompson

to Artillery Reserve, 1st Volunteer Bde.

2nd Maine Battery

Captain James A. Hall

to 1st Corps Artillery Bde.

5th Maine Battery

Captain George F. Leppien (mw 5/3)

Lieutenant Edmund Kirby (mw 5/3)

Lieutenant Greenleaf T. Stevens (w 5/3)

to 1st Corps Artillery Bde.

Battery C, 5th United States Artillery

Captain Dunbar R. Ransom

to Artillery Reserve, 1st Regular Bde.