RUFF, Charles Frederick, soldier, born in Philadelphia, Pennsylvania, 10 October, 1818: died there, 1 October, 1885. He was graduated at the United States military academy in 1838, assigned to the 1st dragoons, served in garrison and frontier duty in Kansas and Iowa, and resigned on 31 December, 1843. Until 1846 he practised law in Liberty, Missouri, and on 18 June, 1846, he enlisted for the war with Mexico as lieutenant-colonel of Missouri volunteers, being made captain in a regiment of mounted rifles in the United States army on 7 July, 1846. He was brevetted major for gallant and meritorious conduct at the skirmish at San Juan de los Llanos. 1 August, 1847, and participated in the battles of Contreras, Molino del Rey (where he was wounded), and Chapultepec, and in the capture of the city of Mexico, after which he served on frontier duty in Washington territory. In 1852-'3 he was superintendent of the cavalry recruiting service, and in 1853 commanded the cavalry-school for practice at Jefferson barracks, Missouri He was made major of mounted rifles on 30 December, 1856, served on the Navajo expedition in 1858-'9, the Comanche expedition in 1860, and was the bearer of despatches to the war department in 1860-'1. He became lieutenant-colonel of the 3d cavalry, 10 June, 1861, was mustering and disbursing officer at Philadelphia, Pennsylvania, from 15 April, 1861, till 29 April, 1863, acting inspector-general of tile Department of the Susquehanna from 29 June till 30 September, 1863, and retired from active service, owing to impaired health, on 30 March, 1864, having mustered into service more than 50,000 volunteers. He was brevetted colonel and brigadier-general, United States army, on 13 March, 1865, for faithful and meritorious services in recruiting the armies of the United States. From 1868 till 1870 he served as professor of military science in the University of Pennsylvania.