Alfred Pleasonton (7 June 1824-17 Feb. 1897) Cavalry officer in the Union Army during the U.S. Civil War. He commanded the�Cavalry Corps�of the�Army of the Potomac�during the�Gettysburg Campaign and engaged�J.�E.�B. Stuart's Confederate cavalry in the largest cavalry action of the war at Brandy Station, Virginia. He also played a prominent role in the October 1864 engagements that inflicted a decisive defeat on Confederate General Sterling Price.