An entry at The Olive Tree Genealogy Blog noted that a database, "Canadian Naturalization 1915-1932," was now online. As I noted in "comments" at The Olive Tree, I found my great-uncle, Archie Johnston and his son, Edward (and also Grace, Archie's wife and Edward's mother) who were living in Greencourt, Alberta, Canada.
Archie, the son of John & Anna (Cameron) Johnston, was my grandmother's (Beatrice Cameron Powers') half-brother. He was born in Sterling, Arenac County, Michigan. Archie Johnston and Grace Gertrude Price were married in Flint, Genesee County, Michigan; the witnesses were Archie's sister, Blanche, and his brother-in-law, Warren Stout.