Military officer; born in Flemingsburg, Ky., Jan. 4, 1822; graduated at West Point in 1843, where he was assistant professor from 1846 to 1855. He entered the service in the Civil War as colonel of the 10th Indiana Volunteers, and was made a brigadier-general in May, 1861. He was at first active in western Virginia, and then in the Army of the Cumberland, 1862-63. He was Rosecrans's chief of staff in the battle of Chickamauga, and in the summer of 1864 commanded the 19th Army Corps, and organized a force for the capture of Forts Morgan and Gaines, near Mobile. Late in 1864 he was placed in command of the Department of Arkansas, where he remained until April, 1866. In March, 1867, he was brevetted major-general, United States army; in 1867-72 commanded the 5th Military District; in 1871 was elected United States Senator from Texas, but declined; and in 1877 was retired. He died in Washington, D. C., Feb. 26, 1899.