Mary was daughter of Alexander Ross, a Highland Scot who had been a chief trader for the Pacific Fur Company and the North West Company, and Sally Timentwa, daughter of an Okanagan chief.
Mary was daughter of Alexander Ross. Alexander Ross was a Highland Scot. Alexander Ross was Sally Timentwa. This Highland Scot had been a chief trader for the Pacific Fur Company. This Highland Scot had been a chief trader for the North West Company. Sally Timentwa was daughter of an Okanagan chief.