You might already have this too -- but in case not, there is a photo of Margaret Gallagher as a soon-to-be-bride of Raymond Pucet, page 28 of the Toronto Star, 25 March 1951. The short write-up under her photo says the wedding will take place in Quebec City on March 31, 1951. Do you know if they settled in Quebec City? A quick search of Toronto Star for the surname Pucet for B-M-D from 1951 onwards produced no hits. I didn't take the time to look for Gallagher, but if you live in the Toronto area, you can access the Toronto Star pages of the past at your local library.
Feel free to post back if you need help searching the newspaper. I could try to do it for you as time permits. Let me know if you want me to attach the photo from the Star of Margaret to another post, if you don't already have it.
Good luck in your search.