Military officer; born in
Queen Anne's county, Md., Sept. 9, 1811; graduated at
West Point in 1831.
He was appointed lieutenant of the
topographical engineers July 7, 1833; was aide to
General Kearny in
California in 1846-47, and was made lieutenant-colonel, Sept. 30, 1847.
He was astronomer to the commission to determine the boundary between the
United States and
Mexico.
He was serving as captain of cavalry in
Mexico when the
Civil War broke out, and brought his command into
Kansas in good order.
In May, 1861, he was made lieutenant-colonel of the 6th Cavalry; served in the campaign of 1862 in the Army of the Potomac, and was made brigadier-general of volunteers in March of that year.
He did good service under
Banks in
Louisiana, and under
Sheridan in the Shenandoah Valley.
He was made colonel of the 5th Cavalry in the fall of 1863; in March, 1865, was brevetted brigadier-general and major-general of the United States army; and in 1876 was retired with the full rank of brigadiergeneral.
He died in
Washington, D. C., Dec. 1, 1887.