Byington, Cyrus a Congregational minister, was born in Massachusetts, and graduated from Andover Theological Seminary in 1819. He was agent for the American Board of Commissioners for Foreign Missions, 1819-20, and went as a missionary to the Choctaw Indians in 1820. He was ordained Oct. 4, 1827, and died at Belpre, 0., Dec. 31; 1868, aged seventy-six years. See Gen. Cat. of Andover Theol. Sem. 1870, p. 37.