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Commanded by Brigadier General James B. Ricketts

First Brigade Brigadier General Abram Duryea
97th New York Infantry Regiment Colonel Charles W. Wheelock
104th New York Infantry Regiment Colonel John Rohrbach
105th New York Infantry Regiment Colonel James M. Fuller
107th Pennsylvania Infantry Regiment Colonel Thomas F. McCoy
Second Brigade Brigadier General Zealous B. Tower (w 8/30)
Colonel William H. Christian
26th New York Infantry Regiment Colonel William H. Christian (^ 8/30)
Lt. Colonel Richard H. Richardson
94th New York Infantry Regiment Colonel Adrian R. Root
88th Pennsylvania Infantry Regiment Colonel George P. McLean
Major George W. Gile
90th Pennsylvania Infantry Regiment Colonel Peter Lyle
Third Brigade Brigadier General George L. Hartsuff (s 8/26)
Colonel John W. Stiles
12th Massachusetts Infantry Regiment Colonel Fletcher Webster (k 8/30)
Major Elisha Burbank
13th Massachusetts Infantry Regiment Colonel Samuel H. Leonard (s 8/28)
Major Jacob Gould
9th New York State Militia Colonel John W. Styles (^ 8/26)
Lt. Colonel William Atterbury
11th Pennsylvania Infantry Regiment Colonel Richard Coulter
 Fourth Brigade Colonel Samuel S. Carroll (w 8/24)
Colonel Joseph Thoburn
7th Indiana Infantry Regiment to 1 Div. 2 Brig. 
84th Pennsylvania Infantry Regiment Colonel Samuel M. Bowman
110th Pennsylvania Infantry Regiment Colonel William D. Lewis
1st West Virginia Infantry Regiment Colonel Joseph Thoburn (^ 8/24)
Artillery
2nd Maine Battery Captain James A. Hall
5th Maine Battery Captain G. F. Leppien
Battery F, 1st Pennsylvania Lt. Artillery Captain Ezra P. Matthews
Pennsylvania Independent Battery C Captain James Thompson