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

Third Division

Brigadier General Andrew A. Humphreys

First Brigade

Bde. Gen. E. B. Tyler

91st Pennsylvania Infantry Regiment

Colonel Edgar M Gregory

126th Pennsylvania Infantry Regiment

Lt. Colonel David W. Rowe

129th Pennsylvania Infantry Regiment

Colonel Jacob G. Frick

134th Pennsylvania Infantry Regiment

Colonel Edward O'Brien

Second Brigade

Colonel P. H. Allabach

123rd Pennsylvania Infantry Regiment

Colonel John B. Clark

131st Pennsylvania Infantry Regiment

Major Robert W. Patton

133rd Pennsylvania Infantry Regiment

Colonel Franklin B. Speakman

155th Pennsylvania Infantry Regiment

Lt. Colonel John H. Cain

Artillery

Captain Alanson M. Randol

1st New York Artilery, Battery C

Captain Almont Barnes

1st United States Artillery, Batteries E&G

Captain Alanson M. Randol