Thoroughly Worthwhile: Baseball in World War II
MLB Opening Day: Why is baseball no longer America's Game?
Baseball and WWII war bonds
Letter from President Roosevelt Regarding Baseball
History of Baseball in 100 Objects by Josh Leventhal
Major League Baseball's Popularity During WWII, News, Scores, Highlights, Stats, and Rumors
Baseball, History, Definition, & Facts
Baseball in Japan
History of baseball, Events, Dates, People, & Facts
Negro Baseball Leagues (1920-1950) •
1930s Baseball History - This Great Game
Play Ball, Eh? - Canada's History
Should Sports be Stopped During the War?, The National WWII Museum
Baseball in World War II - Baseball in Wartime