Just to clear up the married versus maiden names in Quebec.
Since 1981, this is the law in Quebec
Spouses names
Both spouses keep their birth names after marriage and continue to exercise their civil rights under that name
i.e. they must use their birth name in cotnracts, on credit cards, drivers licences, etc.
This rule applies to all spouses domiciled in Quebec, even if they were married outside Quebec.
However, women married before April 2, 1981 who were already using their husbands surnames before that date may continue to exercise their civil rights under their married name. So, bank records, drivers licence etc, for married women using their husbands surname could continue to use that name.
However, hospital records, death records will be under the maiden name no matter when they married. Obituaries for those married before 1981 can be under either married surname or maiden surname or both.
It can be very confusing but came in as part of the equality of woman rules.
When searching especially in Quebec and New Brunswick, you need to search for both maiden and married names.