Hi, Your husband can obtain his Genealogical Registraton of Birth. from the Govt of Alberta - Vital Statistics Registry Offices. The cost $40
Registration has all pesonal information required at the time. Mothers full name - fathers name - etc.
Information varies over years.
Genealogical Registration of Death for his mother Emily MABILLARD * or? did she marry again after the divorce?
** Registrations hold all personal inforamtion required at the time.
*** Certificates/Birth/Marriage/Death: is Extract of basic information taken from the Registration - good for proof of an event - without disclosing to much information .
Obituary - may show names and locations of other fmily members.