"For Stephen, the war intruded on his education early. Studying in Europe, the fighting forced him to abandon his doctoral thesis research and return to Harvard University. Marrying Elizabeth, he moved to Hamilton, where he worked as a machinist to help the war effort until being drafted into the Canadian Signal Corps in 1943."
"Stephen’s action was limited by bad eyesight. He was rejected from battlefield service by the medical board, instead made a corporal and assigned as an instructor at a base near Kingston, Ont."