an eminent Presbyterian minister, born at Mendham, N. J., Oct. 29, 1796, and graduated at Princeton in 1816, was licensed to preach in 1818. He labored in Trenton and Richmond till 1834, when he became secretary to the Am. Bd. Comm. for Foreign Missions. By the wreck of the steamer Atlantic in Long Island Sound, Nov. 27, 1846, he was drowned. A Memoir, by Rev. H. Read, with A Selection of Armstrong's Sermons, was published in 1853.-Sprague, Annals, 4:612.