Shupe's minor league career spanned 1939 to 1950; he did not play professionally for two seasons (1942–1943) during World War II.[1] He appeared in 1153 minor league games, playing for seven different teams, including four seasons in the Pacific Coast League.[1] Primarily a first baseman, he also made nine appearances as a pitcher early in his career, and five appearances in the outfield late in his career.[1]
Shupe is one of many ballplayers who only appeared in the major leagues during World War II. His first major league experience was on July 7, 1945,[2] for the Boston Braves against the Pittsburgh Pirates.[3] He played first base regularly for the Braves through the end of the season,[4] taking over from Joe Mack, whose last game had been on July 4.[5] Baseball records list Shupe as appearing in a game earlier in the season, against the Brooklyn Dodgers on June 17;[4] however, that was a suspended game, and he only played in the completion of the game, when it was resumed on August 4.[6] Shupe played in 78 major league games, registering a .269 batting average (76-for-283), 15 RBIs, and no home runs.[2] Defensively, he made eight errors in 703 total chances for a .989 fielding percentage.[2]
Shupe was a native of East Canton, Ohio.[2] At one time, he dated actress Jean Peters.[7] After his professional baseball career, he worked as a petroleum salesman.[8] Shupe died at the age of 40 in Canton, Ohio.[2]