When Elisabeth Hartline was born on 4 September 1765, in Berks, Pennsylvania, United States, her father, John George Hartlein Sr., was 32 and her mother, Maria Christina Boehm, was 34. She married Henry Casper on 7 June 1786, in Rowan, North Carolina, United States. They were the parents of at least 8 sons and 3 daughters. She died on 15 November 1858, in Rowan, North Carolina, United States, at the age of 93.