Here are some clues, he moved to Montreal with his parents when he was quite young, also mentions his wife, daughter, sons and 3 stepchildren
https://ottawacitizen.com/news/local-news/gordon-reid-1933-2023-retailer-opened-first-giant-tiger-in-byward-market-in-1961
This might be the cemetery?
https://jgs-montreal.org/bdh.html