He returned to Athabasca in 1920 , Nueltin Lake in southern Keewatin in 1947 and the Ungava Peninsula in 1953 , his last trip north .
Between 1917 and 1919 Harper served as a rodent control officer in France with the United States Army 's 79th Division .
Harper returned to Athabasca in 1920 , Nueltin Lake in southern Keewatin in 1947 and the Ungava Peninsula in 1953 , Harper 's last trip north .
Between 1917 and 1919 Harper served as a rodent control officer in France with the United States Army 's 79th Division .