Jackie Robinson's 1947 Breakthrough Began in Havana – Society for American Baseball Research
Jackie Robinson Timeline 1919-1949
Spring Training in Havana: Brooklyn Dodgers, 1942 - LIFE
Jackie Robinson in Cuba - Cuba Dugout
TSN Archives: Dodgers split on Jackie Robinson (March 12, 1947, issue)
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Spring Training in Havana: Brooklyn Dodgers, 1942 - LIFE