"Union" . . "Major general in the United States Army during the American Civil War" . . "United States of America" . "1855Z"^^ . "Cyrus Ballou Comstock (February 3, 1831 \u2013 May 29, 1910) was a career officer in the Regular Army of the United States. After graduating from the United States Military Academy at West Point in 1855, Comstock served with the Army Corps of Engineers. At the beginning of the American Civil War, he assisted with the fortification of Washington, D.C. In 1862, he was transferred to the field, eventually becoming chief engineer of the Army of the Potomac."@en . "1910Z"^^ . . . "*Chief Engineer,II Corps" . "Comstock, Cyrus Ballou"@en . "*Chief Engineer,Army of the Potomac" . "1831Z"^^ . . "*Chief Engineer,Department of North Carolina" . . "*Chief Engineer,Army of the Tennessee" . "1910-05-29Z"^^ . "Cyrus Ballou Comstock"@en . "1831-02-03Z"^^ . . "1895Z"^^ . .