United States Army > Army of the Potomac


< to June • July 1863 • to August >

Commanded by Major General Henry W. Slocum (wing commander July 1-4)
Brigadier General Alpheus Williams
(to 7/4)

Headquarters
10th Maine Battalion Captain John D. Beardsley
First Division Brigadier General Alpheus S. Williams (7/1)
Brigadier General Thomas H. Ruger
(to 7/4)
Brigadier General Alpheus S. Williams 
1st Brigade Colonel Archibad L. McDougall (to 7/26)
Brigadier General J. F. Knipe
2nd Brigade Brigadier General Henry Lockwood recreated 7/1, discontinued 7/15
3rd Brigade Brigadier General Thomas H. Ruger (7/1)
Colonel Silas Colgrove (to 7/4)
Brigadier General Thomas H. Ruger
Second Division Brigadier General John W. Geary
1st Brigade Colonel Charles Candy
2nd Brigade Colonel George Cobham
Brigadier General Thomas L. Kane (7/2*)
3rd Brigade Brigadier General George S. Greene
Artillery
1st New York Artillery, Battery M Lieutenant Charles E. Winegar
Pennsylvania Independent Battery E Lieutenant Charles A. Atwell
4th United States Artillery, Battery F 2nd Lieutenant Sylvanus T. Rugg
5th United States Artillery, Battery K 1st Lieutenant David H. Kinzie

*Brigadier General Kane had pneumonia during the Gettysburg Campaign. He left a Baltimore hospital to join his brigade on July 2, too sick to resume full command but able to assist his senior colonel.