Major League Baseball's Popularity During WWII
The Great American Pastime (1956): Hollywood, Little League, and the Post-World War II Consensus – Society for American Baseball Research
Why Japanese baseball fans are as riveting as the game itself
The Pineapple World Series: Hawaii Baseball During World War II, by Joe Guzzardi
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Excerpt: Beyond Baseball's Color Barrier - BallNine
How World War II Spurred a Decade of Women's Pro Baseball
Major League attendance trends past, present, and future - Beyond the Box Score
Baseball in World War II - Baseball in Wartime
Best MLB Players by birthplace
Should Sports be Stopped During the War?, The National WWII Museum