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Commanded by Brigadier General Alpheus S. Williams

First Brigade Brigadier General Samuel W. Crawford
5th Connecticut Infantry Regiment Colonel George D. Chapman
10th Maine Infantry Regiment Colonel George L. Beal
28th New York Infantry Regiment Colonel Dudley Donnelly
46th Pennsylvania Infantry Regiment Colonel Joseph F. Knipe
Second Brigade Brigadier General John Geary (to 7/14)
Colonel Charles Candy
5th Ohio Infantry Regiment Colonel Samuel H. Dunning
7th Ohio Infantry Regiment Lieutenant Colonel William Creighton
29th Ohio Infantry Regiment Colonel Lewis P. Buckley
66th Ohio Infantry Regiment Colonel Charles Candy
28th Pennsylvania Infantry Regiment Colonel Gabriel De Korponay
Third Brigade Brigadier General George H. Gordon 
27th Indiana Infantry Regiment Colonel Silas Colgrove
2nd Massachusetts Infantry Regiment Colonel George L. Andrews
29th Pennsylvania Infantry Regiment Captain Samuel M. Zulich
3rd Wisconsin Infantry Regiment Captain Thomas H. Ruger
Battery M, 1st New York Artillery Lieutenant James H. Peabody
Pennsylvania Independent Battery F Lieutenant Charles A. Atwell
Battery F, 4th United States Artillery Lieutenant Franklin B. Crosby