We Stand on Guard for Thee: Canada’s Comic-book Heroes. Including Canada Jack: “This acrobatic adventurer first appeared in the March 1943 issue of Canadian Heroes, a comic published by Montreal’s Educational Projects. Jack was athletic, but wasn’t endowed with superhero-level powers; he fought evil as an accomplished gymnast, horseback rider and jiu-jitsu expert. Unlike Johnny Canuck, most of Jack’s adventures kept him on the homefront fighting saboteurs, kidnappers, firebugs, and POW escapees. He was helped by members of the Canada Jack Club, a children’s group organized to support the war effort.”