DE RUSSY, Louis G., soldier, born in New York in 1796; died in Grand Ecore, La., 17 December 1864. He was graduated at the U. S. military academy in 1814, and made 3d lieutenant in the 1st artillery. He served in the war of 1812'5, with Great Britain, as acting assistant engineer in erecting temporary defenses for New York City and its environs, and was in garrison in New York harbor in 1815'6, when he was made battalion adjutant of artillery. In 1819 he became topographer of a commission to establish the northern boundary of the United States under the treaty of Ghent. He became captain of the 3d artillery in 1825, and in the following year was made paymaster and major. In 1842 he was dropped from the army, and became a planter at Natchitoches, La. In 1846 he served in the Mexican war at Tampico, and became colonel of the 1st Louisiana volunteers. He completed the defenses of the place, opened a new channel to Tamessie River, held various civil offices, and was engaged in the fight at Callabosa River and in the skirmish of Tantayuka. He was a civil engineer from 1848 till 1861, employed in making improvements in navigation, and from 1851 till 1853 was a member of the Louisiana House of Representatives, and from 1853 till 1855 of the senate. He was major general of Louisiana militia from 1848 till 1861, when he entered the Confederate army.

His brother, Rene Edward De Russy, soldier, born in Haiti, W. I., 22 February 1790; died in San Francisco, 23 November 1865. He was a son of Thomas de Russy, of St. Malo, France, who came to New York in 1791 and removed to Old Point Comfort, Virginia, where he resided many years. The son was graduated at the U. S. military academy in 1812, and made 2d lieutenant of engineers. He served in the war of 1812'5, with Great Britain, as assistant engineer in constructing defenses at New York and at Sackett's Harbor, New York, and participated in the campaigns on the St. Lawrence and Lake Champlain, In 1814 he was brevetted captain for gallant conduct at the battle of Plattsburg. He was chief engineer of General Macomb's army in 1814, and captain of the corps of engineers in 1815. He was assistant engineer in the construction of the fort at Rouse's Point, New York, in 1816, superintending engineer of the repairs and construction of fortifications in New York harbor in 1818, and of defensive works on the Gulf of Mexico in 1821. In 1824 he was brevetted major. He was superintendent of the U. S. military academy from 1833 till 1838, and lieutenant colonel of engineers from 1838 till 1863. At the beginning of the civil war he was ordered to the defense of the Pacific coast, and constructed the fortifications of San Francisco harbor. He was also president of the board of engineers for devising projects and alterations in the land defenses of San Francisco. In 1865 he was brevetted major general in the U. S. army for long and faithful service.

Rene's son, Gustavus Adolphus De Russy, soldier, born in Brooklyn, New York, 3 November 1818, having been three years at West Point, was appointed from Virginia, 2d lieutenant in the 4th U. S. artillery, 8 March 1847. He served in the Mexican war, having been brevetted 1st lieutenant " for gallant and meritorious conduct" at Contreras and Churubusco, and captain, 13 September 1847, for gallantry at Chapultepec. He was regimental quartermaster from 1847 till 1857, and stationed at Fort Monroe in 1848. He was made 1st lieutenant, 16 May 1849; captain, 17 August 1857; brevet major, 25 June 1862, for bravery displayed in the action near Fair Oaks, Virginia. ; Brevet lieutenant colonel, for the same cause in the battle of Malvern Hill, and brevet colonel, 17 March 1863. He was promoted to be brigadier general of volunteers, 23 May 1863; brevet colonel, 13 March 1865 (for services in the war of the rebellion); and brevet brigadier general, for the same cause, on the same day. He was mustered out of the volunteer service, 13 January 1866; promoted to be major in the regular army, 26 July 1866; lieutenant colonel, 25 August 1879 ; colonel 30 June 1882; and was retired by operation of law, 3 November 1882.