Hi Bill, I'm not really sure, I believe Elizabeth to be the dau of Sarah Hogg, one of the wives of Robert J. Stell. The Stell info I have came from a gedcom from ancestry.com. It was a search of 360+ William Thorntons, the only William that had a wife named Elizabeth whose last name matched phoenically, and had a Sarah Hogg, with that particular spelling. Mary Ann Thornton Davis, told my mother that her grandmother was Sally Hogg. Mary Ann was my mother's grandmother. Another clue to this Stell family being the right family was Elizabeth had a sister named Amanda, who also married a Thornton, and a daughter named Julia Amanda. Mary Ann was b. after the 1860 census in LA.