Google "Lethbridge and District Branch of the Alberta Genealogical Society". There are obituaries or funeral notices listed for a George Delaney Nov. 21, 1949 and Mrs. Delaney Aug. 6, 1914. Copies can be sent for but are rather expensive ($30Cdn for first request and $10 for each additional request. (About 15 pounds and 5 pounds at the current exchange rate. The Canadian dollar has risen considerably in recent months).

There is a local history "The Bend, A History of West Lethbridge" which includes the Delaney family. There is a copy of this book at my local library. I'll have a look to see whether there is any mention of your aunts.