He gets one of of those really short Wikipedia entries: Harry Wasylyk, Winnipeg inventor, sort of, of the plastic garbage bag. Other sources are a little more expansive.
Enter Winnipeg inventor Harry Wasylyk who, after the Second World War, began experimenting with a new material called polyethylene. Harry made his first plastic bags in his kitchen and supplied them to the Winnipeg General Hospital to line their garbage cans. He quickly moved his kitchen production to a plant. – Library and Archives Canada