SICKEL, Horatio Gates, soldier, born in Belmont, Bucks County, Pennsylvania, 3 April, 1817. He was educated at the Friends' school in Byberry, engaged in the business of coach-making, invented in 1848 a new method of producing artificial light, and became an extensive manufacturer of lamps. Before the civil war he was connected with various militia organizations. He entered the United States service on 17 June, 1861, as colonel of the 3d regiment of the Pennsylvania reserve corps, and succeeded General George G. Meade in the command of the brigade. He commanded a brigade in Gem George Crook's Kanawha valley expedition of 1864, and afterward one in the 5th army corps till the close of the war. He participated in the principal battles of the Army of the Potomac, lost his left elbow-joint, besides receiving two other wounds in the service, and was brevetted brigadier-general on 21 October, 1864, and major-general on 13 March, 1865. He was health officer of the port of Philadelphia in 1865-'9, in 1869-'71 collector of internal revenue, and in 1871-'84 United States pension-agent. He has been an officer in banking and railroad corporations, was for eight years a member of the Philadelphia school board, and since 1881 has been president of the board of health of Philadelphia.