NEWTON. JOAN, b. Va., 1823. He was appointed second lieut. in the corps of engi neers, July 1, 1842, on graduating from West Point military academy. where he acted as assistant professor of engineering 1843-46. The construction of fortifications and the improvement of 'rivers and harbors next employed his time at various points on the Atlantic coast and greatlakes, and 14 years of continuous service secured his promotion to the rank of e,apt. He sVasCliief engineer of expedition of1858. All through the rebellion he was in active service, beginning as chief engineer of the department of Pennsylvania, and later of Shenandoah. Then he was summoned to assist In construct ing the defenses of Washington, and had command of a brigade. During the peninsular and Maryland campaigns of the army of the Potomac he was a brig.gen. of volunteers, and took part in the battles of Gaines Mill, Glendale, South Mountain, and Antietam, where he was brevetted lieut.eol. Commanding a division, he was engaged at Frederick
burg, in the storming of Marye heights and battle of Salem, and his services at the battle of Gettysburg gave him the rank of brevet col., and the command of the let corps. In the invasion of Georgia he led a division of the army of the Cumberland through all the engagementsprezeding the capture of Atlanta, and Mar. 13, 1865, he was made brevet maj.gen. Since the war he has been occupied it strengthening the defenses of New York harbor, removing the obstacles to navigation at Hell Gate and other portions of the East river, and improving some of the harbors of lake Champlain, the channel between Staten Island and N. .T., and the Hudson river. June 30, 1879, he attained the rank of col. in the corps of engineers.