born March 23, 1818, near Marietta, Ohio, U.S.
died Nov. 19, 1898, Rockport, Ky.
U.S. general.
A graduate of West Point, he was appointed general of volunteers at the start of the American Civil War, and he helped organize the Union's Army of the Potomac. He was sent to Kentucky to succeed William T. Sherman and to organize the Army of the Ohio. In 1862 he was Union commander in the Kentucky campaign against Confederate forces under Braxton Bragg . Following the Battle of Perryville, he was removed from his command for alleged tardiness in his pursuit of Confederate forces.