You can apply to get the Adoption records here:
http://humanservices.alberta.ca/adoption/14846.html---------------------------------------------------------------------------------------------------------------------
If she was born in Calgary in 1919- she would be on the 1921 Census- so would her mother Mary
The Voters list- is on the Ancestry- from 1935-1980 so you can search that.
Did you try searching any of the Marys on the 1921 Census that I gave you?
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http://en.wikipedia.org/wiki/Prairie_Bible_Institutehttp://www.prairie.edu/contactus-----------------------------------------------------------------------------------------------------
I would put a posting on the Alberta/ or Three Hills -message Board.
DNA test for your Husband might be an idea- At least he would know his heritage and know if he was Scottish or what ever..
I had a cousin who did this one :
https://www.23andme.com/en-ca/Ancestry also has DNA test and info on their website
Bye for now
J