Leavenworth, Henry, soldier, was born at New Haven, Conn., Dec. 10, 1783, a son of Col. Jesse and Eunice (Sperry) Leavenworth. Soon after his birth his parents removed to Danville, Vt., where he was educated. He then read law with Gen. Erastus Root of Delhi, N. Y.; and upon being admitted to the bar formed a partnership with his precepter which lasted until 1812, when he was appointed a captain in the Twenty-fifth U. S. infantry. A few months later he was made major; was wounded at the battle of Niagara on July 25, 1814, and the following November was brevetted colonel. The next year he went to Prairie du Chien as Indian agent, and on Feb. 10, 1818, was made lieutenant-colonel of the Fifth U. S. infantry. While on duty in the West he built several military posts, one of which is Fort Leavenworth, Kan., now one of the leading military establishments of the country. In 1825 he was made brigadier-general by brevet, and in 1833 received the full rank of brigadier-general. He died at Cross Timbers, Ind. Ter., July 21, 1834, while leading an expedition against the Pawnee and Comanche Indians. His regiment erected a monument at Cross Timbers.