CRAIGHILL, William Price, soldier, born in Charlestown, Jefferson County, W. Virginia, 1 July, 1833. After attending Charlestown academy he entered the United States military academy, where he was graduated in 1853, standing second in a class of fifty-two, and was assigned to the engineer corps. He superintended the building of Fort Delaware in 1858, was made first lieutenant on 1 July, 1859, and served most of the time till 1864 at the military academy as instructor, treasurer, and in command of an engineer detachment there. He was made captain on 3 March, 1863, was engaged in constructing defenses for Pittsburgh when it was threatened by Morgan and other raiders, and was chief engineer of the middle department from April till June, 1864. He was brevetted lieutenant colonel, 13 March, 1865, for his services in the defense of Cumberland Gap, and was made major on 23 November, serving on the board for carrying out in detail the modifications of the New York defenses from 20 June till 10 :Nov., 1865. From 1865 till 1867 he superintended the defenses of Baltimore harbor. Since then he has been engaged on a great number of important works, including the improvement of the Potomac, near Washington, from 1870 till 1874, that of the Appomattox river, 1870-'71, and of the Delaware in 1873. He was sent to examine movable dams and other works in France and Great Britain in 1877-'8. On 2 January, 1881, he was promoted to lieutenant colonel. Col. Craighill is a member of the Maryland historical society, and was a delegate to the general convention of the Protestant Episcopal church in 1880, 1883, and 1886. He has compiled "Army Officer's Pocket Companion" (New York, 1861); translated Dufour's "Cours de tactiques" (1863); and, jointly with Capt. Mendell, General Jomini's "PrScis de l'art de la guerre" (1862).