Hi, Search online White Pages Directory MyTelus.com
or 411.com
You may find some current family. At least it would show locations where family may have settled -which would help your research.
Search: Online Automated Genealogy; Census 1901, 1906, 1911
Ancestry for Canada Census 1916.
Do a Google Search:
Saskatchewan Birth,Marriage Death
Search Manitoba - birth marriage death.
Provincial Archive of British Columbia - Vital Events Index
Marriage 1859-1934 - Birth 1872-1903 -Death 1872-1989
Alberta GenWeb Local History Books
http://www.rootsweb.ancestry.com/~canab/National Archive of Canada- Western Land Grant,Soldiers of WW1
http://www.collectionscanada.gc.ca/archivianet/index-e.htmlHave you searched US Census ? family may have moved to other areas of the USA
Have you searched.US Social Security Index.
All could lead you to areas where family lived/
Cheers & Good Luck, Stella