Hi Linda, There is a lot more info available now than in 2000. This is a link to a book called Saskatchewan and it's People. There is a write-up about Rev. Tate on pages 1892 to 1893 and on Archibald Gillis on pages 1736 to 1737.
http://www.ourroots.ca/e/toc.aspx?id=720. I got some hits in other books as well and if you still want info I'll send you links. Butch (board volunteer)