Hi, What time frame are you researching re Joseph Diamond and Denise DIAMOND nee SICOTTE?
Obituaries - may show names and locations of other family members at the time.
Family members may have submitted family history/stories to a Local History Book Project
Death Registrations/ Birth, Marriage from the Govt of Alberta Vital Statistics Registry office -
There may be restrictions as to who may obtain same.
The cost in the $40 [years ago] range.
Cheers & Good Luck, Stella