Career
In 1939, he played in the NFL for the Chicago Bears and the Brooklyn Dodgers. In 1940 and 1941 he played in the American Federation of Labor-Congress for the Buffalo Indians/Tigers. He earned all-American Federation of Labor-Congress honors both years in the league.
He was also one of over 1,000 NFL personnel who served in the military during World World War World War II Prior to his professional career, Shellogg played at the college level while attending Notre Dame.
He was a two-time letterman in 1936 and 1937. He was even elected captain of the 1938 Notre Dame team