Refered to as Margaret Rankin McIntyre in some sources. See: Data:Houston Cemetery Transcriptions in Old Chester County
Husband Jonathan Huston died in 1830, and Margaret died in 1846. Source:Zeamer, 1901 enters a note describing her as the wife of Jonathan Huston, but lists here as
Margaret Rankin McIntyre. It seems likely that her maiden name was "Rankin", and that after the death of Jonathan she remarried, taking the surname "McIntyre".