Pittsburgh women who joined baseball teams in the 1940s and 50s

The first professional women's baseball league WWII inspired 1992 movie A League of Their Own

Left on the Field: Colorado's Semi-Pro and Amateur Baseball Teams

Dames in the Dirt: Women's Baseball Before 1945 – Society for American Baseball Research

All-American Girls Professional Baseball League (AAGPBL), History & Facts

Remembering Sam Nahem, the Syrian Jew who integrated military baseball – The Forward

Jackie Robinson Day, when MLB players can wear No. 42

Pittsburgh Pirates All-Time 25-Man Roster

Official Pittsburgh Pirates Website

Toni Stone, Biography & Facts

What baseball's move west teaches us about 1958 – and where it goes from 2018 – Orange County Register

Baseball's tumultuous relationship with the female fan - Beyond the Box Score

International Women's Baseball Center director Shirley Burkovich dies

The League': An American story told through the lens of Black baseball - The Boston Globe

Pittsburgh women who joined baseball teams in the 1940s and 50s

Baseball's Black Problem Sport in American History

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