John Newman Mitchum was the September child of a Norwegian mother and an Irish/Blackfoot father whom he never knew, as he was killed in a tragic train yard accident in 1919. His two-years-older brother Robert filled the role as best as he could, while their older sister Annette studied the lively arts and eventually joined a traveling vaudeville team. Born in Bridgeport, Connecticut, the young family moved to Rising Sun, Delaware, where farm life didn't agree with the young boys. Scarce opportunities took them to New York City, where the stree…