Melancthon Williams Jacobus, b. 19 Sept. 1816 in Newark, Essex County, New Jersey, d. 28 Oct 1876 in Pittsburgh, Allegheny County, Pennsylvania, son of Peter Cornelius Jacobus & Phebe Williams. He married Sarah Hayes on January 7, 1840 in Essex County, New Jersey.
Melancthon Williams Jacobus, b. 15 Dec 1855 in Allegheny City, Pennsylvania, d. 31 Oct 1937 in Hartford, Hartford County, Connecticut, son of Melancthon Williams Jacobus & Sarah Hayes. He married Clara M. Cooley in 1896.