27 Feb. 1793–18 Jan. 1841. Civil engineer, sheriff, court justice, military officer, farmer, commission merchant. Born near Goshen, Orange Co., New York. Son of Thomas Allen and Bathsheba Stoddard. As civil engineer, built bridge over Susquehanna River at Columbia, Lancaster Co., Pennsylvania, 1816, and another over Kentucky River, in Frankfort, Franklin Co., Kentucky, 1817. Moved to St. Louis, 1817; to Franklin, Howard Co., Missouri, 1818; and to what later became Clay Co., Missouri, 1820. Married Dinah Trigg, 19 Sept. 1822, in Howard Co. Sheriff of Clay Co., 1826–1830. Owned farm and warehouses along Missouri River; portion of farm, Allen’s landing, was main point of entry and exit for business and travel in northwest Missouri, ca. 1828–ca. 1841. Justice of Clay Co. court, 1831–1834. Colonel of militia regiment in Clay Co.; served in Black Hawk War, 1832, and in conflict known as Heatherly War, 1836. In Feb. 1834, was asked by Captain David R. Atchison for two hundred militiamen to help protect Mormon witnesses of mob attacks who were to appear in Independence, Jackson Co., Missouri, for grand jury hearing. Died in Clay Co.