III Corps (Union army)
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There were four formations in the Union Army designated as III Corps during the American Civil War.
Daniel Sickles and staff after the Battle of Gettysburg
Maj. Gen. David B. Birney
Brig. Gen. Gershom Mott
Army of the Potomac
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The Army of the Potomac was the primary field army of the Union army in the Eastern Theater of the American Civil War. It was created in July 1861 shortly after the First Battle of Bull Run and was di
Generals of the Army of the Potomac at Culpeper, Virginia in September 1863, including (from left to right): Gouverneur K. Warren, William H. French, George G. Meade, Henry J. Hunt, Andrew A. Humphreys, and George Sykes
The Army of the Potomac – Our Outlying Picket in the Woods, an illustration of the Army of the Potomac by Winslow Homer published in Harper's Weekly on June 7, 1862
Grand Review of the Army of the Potomac, an October 1863 illustration by Thomas Nast in Harper's Weekly
An illustration of the Army of the Potomac celebrating Saint Patrick's Day with a steeplechase race among the Irish Brigade, drawn by Edwin Forbes on March 17, 1863