When Elias DeJarnette was born on 10 February 1793, in Abbeville, South Carolina, United States, his father, Reuben DeJarnette, was 20 and his mother, Eleanor Pickens, was 13. He married Frances Lavinia Ann Swift before 1813. They were the parents of at least 2 daughters. He died on 13 April 1849, in Macon, Noxubee, Mississippi, United States, at the age of 56, and was buried in DeJarnate Cemetery, Noxubee, Mississippi, United States.