Bob Ireland, photos by Mark One, early 1950s

Billy Hill Nudes by Mark One of Canada, late 1950s

Billy Hill Exercising, photos by Mark One of Canada, early 1950s

Mr Canada Billy Hill Magazine Features by Mark One, late 1950s

Canadian bodybuilders Billy Hill and George Sheffield photographed by Mark One studios

Andre Lafreniere, photos by Mark One studios of Canada, 1950s