Hi Sheila, Just a few pieces re the Douglass/Stewart connection. 1861 census of Horton, Renfrew has Elizabeth (Lizzie) age 19 living with her parents. Her alleged child, Isabella age one, is also present. In 1861 McNAb there is a Stewart family with both a Duncan (18) and a Peter (23).
When Isabella marries James Ross in 1888, she gives her parents as Lizzie Stewart and Peter Stewart. When Lizzie's son, Duncan marries Mary Ranger, his parents are listed as Duncan Stewart and Lizzie Douglas. Curious. Larry