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Hank Greenberg is one of the most prolific home run hitters of the 1930s and 1940s. While his 331 career long balls paled in comparison to the likes of Babe Ruth - and even contemporaries such as Jimmie Foxx, Lou Gehrig, and Mel Ott - he finished his career in 1947 with the fifth-most home runs by any player in the game’s history.