Deciphering baseball's shocking lack of black players
The Secret History Of Black Baseball Players In Japan : Code Switch : NPR
How a trio of pioneers gave rise to racial integration in the NBA
Pre-Negro Leagues stars laid the foundation for integration
Negro League Baseball
IWU baseball saw few Black players, integration issues for decades
Why do people consider Jackie Robinson the first Black baseball player when there were other Black players in the majors before him? - Quora
Integrating Baseball, before Jackie Robinson - JSTOR Daily
Rufus Lewis – Society for American Baseball Research
Short stay: Black baseball briefly had West Coast home – Orange County Register
Before Brooklyn: the secret heroes who helped break baseball's color barrier, MLB
Integrating Baseball, before Jackie Robinson - JSTOR Daily
Managers, Umpires, and Executives Get Their Hall of Fame Shot Via 2024 Contemporary Baseball Ballot
Black players in organized white baseball in the pre-integration era - Beyond the Box Score