Jacob was the son of John HOFFART and Elizabeth STIHLI. He was the grandson of Christian HOFFARTH (b. 1716 in Schwaigern, Germany) and Christian's first wife, Elizabeth KEIM.
Jacob's first wife was Elizabeth ALLEN. Together, they had nine children: Sally Ann, Surrilda, Nancy Jane, David, James Allen, Jacob B., Elizabeth Ellen, John Newton, and Eliza A. Jacob's wife Elizabeth Allen died in Butte Co., California, in October 1880.
Jacob's second marriage was on December 24, 1880, in Scott Co., Indiana. He married the widow Elizabeth McFADDEN (maiden name was BRIDGEWATER). She died nine days before Jacob.
Burial information is from "Johnson Township Cemetery Records," page 45.