SILL, Joshua Woodrow, soldier, born in Chillicothe, Ohio, 6 December, 1831; died near Murfreesboro, Tennessee, 31 December, 1862. He was graduated at the United States military academy in 1853, assigned to the ordnance, and, after being on duty at Watervliet arsenal, returned to the academy, where he was assistant professor of geography, history, and ethics from 23 September, 1854, till 29 August, 1857. He was promoted 2d lieutenant in 1854, and 1st lieutenant in 1856. He was engaged in routine duty at various arsenals and ordnance depots until 25 January, 1861, when he resigned to accept the professorship of mathematics and civil engineering in the Brooklyn collegiate and polytechnic institute. At the beginning of the civil war in April he at once offered his services to the governor of Ohio, and was commissioned assistant adjutant-general of that state. On 27 August he was commissioned colonel of the 33d Ohio volunteers, after taking part in the battle of Rich Mountain on 11 July. From September, 1861, till September, 1862, he participated in the operations in Kentucky, Tennessee, and Alabama, after 30 November, 1861, being in command of a brigade. On 16 July, 1862, he was appointed brigadier-general of volunteers, and in the following autumn and winter he took part in the battle of Perryville, the pursuit of Gem Braxton Bragg's army, and the Tennessee campaign of the Army of the Cumberland. He was killed at the battle of Stone River while endeavoring to rally his men.