Integration brought an unsurpassed legion of talent to baseball in the 1950s - The Washington Post
Black Ball, Part 4, by John Thorn
After the abuse Jackie Robinson endured, Frank Robinson refused to take it - The Washington Post
After Jackie: Players who followed Robinson to MLB also faced ongoing racism
Jackie Robinson, Part II, Episode 2
The Jackie Robinson Story: Ken Burns Documentary Captures the Man and the Movement - The American Prospect
75 facts about Jackie Robinson, 75 years after he integrated Major League Baseball - The Athletic
This is Larry Doby's Story: Reliving Yesteryear
From the Archives: Jackie Robinson: Simply a Great Athlete - Los Angeles Times
Jackie Robinson and the Integration of Baseball
Clemente: The Passion and Grace of Baseball's Last Hero eBook : Maraniss, David: Kindle Store
Why did some MLB players refuse to meet with Jackie Robinson when he first came into the league? - Quora