Jacob was the 4th of 7 children of Christian Mowrey/Maurer and Barbara Yerian. He married 1st January 1, 1827, Adams County, Ohio, to Fannie Fry. He married 2nd February 2, 1831, Adams County, Ohio, to Rachel Satterfield.
Children of Jacob and Rachel: Sarah "Leah" (ca.1834-unk) Mary J. (ca.1835-unk) Rebecca (ca.1836-unk) David (ca.1838-unk) America (ca.1839-unk) Francis Marion (Apr,1842 OH-Mar 3,1927 IL) Robertson(ca.1842-unk) Henry Clay (1845 OH-1931 MO) Elizabeth (ca.1846-unk) Winfield Scott (1848-1917)