In the book Euphrasia a history of the area, there is listed Peter McCauslan age 41 farmaer Scottish wife Ann age 40 and son Silas age 11 in the 1891 census. The McCauslands that I knew in the 1950s and later lived in a community called Union, on the boundary of Collingwood and Euphrasia Townships. I knew a Ken and a Lois McCausland. Ken is dead but perhaps I could find out where Lois is if you are interested. Also can find if Peter is buried in Thornbury
Jean