United States Army


< to August • September 1862

Commanded by Major General John Pope (relieved September 3)

Discontinued and merged into the Army of the Potomac as the 11th Corps on September 12, 1862

First Corps Major General Franz Siegel 
First Division Brigadier General Julius Stahel to Army of the Potomac,
11th Corps
Second Division Brigadier General Adolf Von Steinwehr
Third Division Brigadier General Carl Schurz
Milroy’s Independent Brigade Brigadier General R. Milroy
Cavalry Brigade Colonel John Beardsley
Second Corps Major General Nathaniel P. Banks
First Division Brigadier General Alpheus Williams (to 9/4)
Brigadier General Samuel W. Crawford
to Army of the Potomac,
12th Corps
Second Division Brigadier General George S. Greene
Cavalry Brigade Brigadier General John Buford
Third Corps Major General Irvin McDowell (to 9/5)
Brigadier General J. B. Ricketts (9/5 – 9/6)
Major General Joseph Hooker
First Division Brigadier General Abner Doubleday to Army of the Potomac,
1st Corps
Second Division Brigadier General John B. Ricketts
Third Division Brigadier General John F. Reynolds