orig. Cornelius (Alexander) McGillicuddy
born Dec. 22/23, 1862, East Brookfield, Mass., U.S.
died Feb. 8, 1956, Philadelphia, Pa.
U.S. baseball manager and team executive.
Mack played professional baseball (1886–96), usually as a catcher, before becoming manager of the Milwaukee Brewers (1897–1900) and the Philadelphia Athletics (1901–50). He was president of the Athletics from 1937 to 1953. His teams won 3,776 games and lost 4,025, both all-time records. He helped establish the American League .