TONE, William Theobald Wolfe, soldier, born in Dublin, Ireland, 29 April, 1791; died in New York city, 10 October, 1828. He was the eldest son of the Irish patriot and French general, Theobald Wolfe Tone. After the tragic death of his father he was declared an adopted child of the French republic by the Directory, and educated with his younger brother in the Prytaneum and Imperial lyceum at the national expense. During this period he wrote a work on the legislation of the Goths in Italy, which was favorably noticed by the institute. He was appointed a cadet in the Imperial school of cavalry on 3 November, 1810, and remained there until January, 1813, when he was promoted to be sub-lieutenant in the 8th regiment of chasseurs. He distinguished himself in the engagements of that year, and received six lance wounds at the battle of Leipsic. He was then made lieutenant on the staff, aide-de-camp to General Bagneres, and member, of the Legion of honor. After the fall of Napoleon he gave himself to literary and antiquarian studies. But, when Louis XVIII. left the kingdom, he considered himself absolved from his allegiance, and served again under Napoleon, and was employed by him in organizing defensive forces on the Rhine and on. the Spanish frontier. He left the French army after the battle of Waterloo, and came to the United States in 1816. He studied law for some time, and wrote papers on military tactics. He was appointed 2d lieutenant of light artillery on 12 July, 1820, and was transferred to the 1st artillery on 1 June, 1821, but resigned on 31 December, 1826, and married a daughter of William Sampson. He published "L'Etat civil et politique de l'Italie sous la domination des Goths" (Paris, 1813) ; "Life of Theobald Wolfe Tone, written by Himself and continued by his Son: with his Political Writings, etc. ; edited by his Son, William Theobald Wolfe Tone, with a Brief Account of his own Education and Campaigns under the Emperor Napoleon" (2 vols., Washington, 1826; London, 1827); and "School of Cavalry, or a System for Instruction, etc., proposed for the Cavalry of the United States" (Georgetown, D. C., 1824).