Military officer; born in
York, Pa., Feb. 27, 1823, graduated at
West Point in 1843.
In the
engineer service, he was actively engaged when the war with
Mexico broke out. He served on the staff of
General Taylor at the
battle of Buena Vista, and was brevetted first lieutenant.
Serving as
Professor of Natural and Experimental Philosophy at
West Point for four years, he occupied the same chair, and that of Civil Engineering, in the New York City Free Academy, in 1852.
In May, 1861, he was appointed colonel of the 12th Infantry, and in July was assigned the command of a brigade in
Heintzelman's division.
He was in the hottest of the fight at
Bull Run; was promoted brigadier-general of volunteers in September, and appointed to the command of a division of the Army of the Potomac.
Franklin did excellent service in the campaign of the
Virginia Peninsula, and on July 4, 1862, was promoted to major-general.
He served under
McClelland in
Maryland, and under
Burnside at
Fredericksburg, and in 1863 was assigned to the Department of the Gulf, under
Banks.
In March, 1865, he was brevetted major-general in the regular army, and, resigning in March, 1866, engaged in manufacturing and engineering.
In 1889 he was
United States commissioner-general for the
Paris Exposition.