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

Third Division

Major General D. B. Birney

First Brigade

Bde. Gen. J. H. H. Ward (until 5/12)

Colonel Thomas W. Egan

20th Indiana Infantry Regiment

40th New York Infantry Regiment

Colonel Thomas W. Egan (until 5/12)

Lt. Colonel Augustus Warner

86th New York Infantry Regiment

124th New York Infantry Regiment

99th Pennsylvania Infantry Regiment

110th Pennsylvania Infantry Regiment

141st Pennsylvania Infantry Regiment

3rd Maine Infantry Regiment

4th Maine Infantry Regiment

from 2nd Bde. (see below)

2nd United States Sharpshooters

Second Brigade

Bde. Gen. Alexander Hays (until 5/5)

Colonel John S. Crocker (5/5 - 5/18)

Colonel Elijah Walker (5/18 - 5/23)

Colonel Byron R. Pierce (5/23 - 5/29)

Colonel Thomas R. Tannatt (after 5/29)

4th Maine Infantry Regiment

to 1st Bde. (see above)

17th Maine Infantry Regiment

1st Massachusetts Heavy Artillery

from Tyler's Heavy Artillery Division

3rd Michigan Infantry Regiment

5th Michigan Infantry Regiment

93rd New York Infantry Regiment

57th Pennsylvania Infantry Regiment

63rd Pennsylvania Infantry Regiment

105th Pennsylvania Infantry Regiment

1st United States Sharpshooters

Third Brigade

Bde. Gen. Gershom Mott reorganized 5/13

1st Maine Heavy Artillery

from Tyler's Heavy Artillery Division

1st Massachusetts Infantry Regiment

from 4th Division, 1st Brigade

to Massachusetts to muster out 5/13

16th Massachusetts Infantry Regiment

from 4th Division, 1st Brigade

5th New Jersey Infantry Regiment

from 4th Division, 1st Brigade

from 4th Division, 1st Brigade

from 4th Division, 1st Brigade

from 4th Division, 1st Brigade

from 4th Division, 1st Brigade

115th Pennsylvania Infantry Regiment

from 4th Division, 1st Brigade

Fourth Brigade

Colonel William R. Brewster organized 5/13

11th Massachusetts Infantry Regiment

from 4th Division, 2nd Brigade

70th New York Infantry Regiment

71st New York Infantry Regiment

72nd New York Infantry Regiment

73rd New York Infantry Regiment

74th New York Infantry Regiment

120th New York Infantry Regiment

84th Pennsylvania Infantry Regiment