The United States Army


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Commanded by Major General Joseph Hooker

The Ninth Corps left the Army of the Potomac. Its 3rd Division transferred to the Department of Virginia and its 1st and 2nd Divisions transferred to the Department of the Ohio.

Headquarters
First Corps Brigadier General James S. Wadsworth (to 3/9)
Major General John F. Reynolds
1st Division Brigadier General Solomon Meredith (3/1)
Brigadier General Gabriel Paul (to 3/9)
Brigadier General John S. Wadsworth
2nd Division Brigadier General John C. Robinson
3rd Division Major General Abner Doubleday
Second Corps Major General Darius N. Couch
1st Division Major General Winfield S. Hancock
2nd Division Major General Oliver O. Howard
3rd Division Major General William H. French
Third Corps Major Gen. Daniel Sickles
1st Division Brigadier General David Birney
2nd Division Brigadier General Hiram Berry
3rd Division Brigadier General Amiel W. Whipple
Fifth Corps Major General George Meade 
1st Division Brigadier General Charles Griffin
2nd Division Major General George Sykes
3rd Division Brigadier General Andrew A. Humphreys
Sixth Corps Major General John Sedgwick
1st Division Brigadier General W. T. H. Brooks
2nd Division Brigadier General Albion P. Howe
3rd Division Brigadier General John Newton
Ninth Corps Major General William F. Smith (to 3/17)
Major General Ambrose Burnside
1st Division Brigadier General Orlando B. Wilcox to Dept. Ohio 3/19
2nd Division Brigadier General Edward Ferrero to Dept. Ohio 3/19
3rd Division Brigadier General George W. Getty to Dept. of Virginia 3/2
Eleventh Corps Brigadier General Adolph Von Steinwehr (to 3/5)
Major General Carl Schurz
1st Division Brigadier General Julius H. Stahel (to 3/10)
Brigadier General Nathaniel C. McLean
2nd Division Colonel A. Bushbeck (to 3/5)
Brigadier General Adolph Von Steinwehr (to 3/28)
Colonel A. Bushbeck
3rd Division Brigadier General Carl Schurz (to 3/5)
Brigadier General Alexander Schimmelfenning
Twelfth Corps
Major General Henry W. Slocum
1st Division Brigadier General Alpheus Williams
2nd Division Brigadier General John W. Geary
Cavalry Corps Major General George Stoneman
1st Division Brigadier General Alfred Pleasonton
2nd Division Brigadier General W. W. Averill
3rd Division Brigadier General David McM. Gregg