8 lug 3/4 and 1 ton rear axles did not come out untill 1947. prior to that 6 lug axles were used on 3/4 ton trucks. I don't know what was used on 1 tons prior to 1947, but 14 inch brakes certainly screams 1 ton to me.
So yes it is certainly possible that you have a Canadian Maple leaf 1 ton truck in it's mostly original configuration. From the pics it looks like you have a sweet truck.
John