Eugene Leon Crumling (April 5, 1922 – February 11, 2012) was a backup catcher in Major League Baseball who played for the St. Louis Cardinals during the 1945 season. Listed at 6 ft 0 in (1.83 m), 180 lb., he batted and threw right-handed. Born and raised in Wrightsville, Pennsylvania, Crumling earned the nickname "Lefty" while a boy, before he began throwing right-handed. Born with the surname Crumbling, he dropped the 'b' from it following high school. He also played for eight Minor league teams from 1941 through 1952, hitting a .236 average in 895 games.