There are many great books written about the Negro Baseball Leagues and how Chicago was central to their efforts. Here are links to some of the books used for reference in episode 504.
First Negro League Champions, The: The 1920 Chicago American Giants by Bush, Bauer, Johnson, and others
https://amzn.to/3G8amrs
Black Baseball in Chicago by Larry Lester, Sammy J. Miller, & Dick Clark
https://amzn.to/3MsPspb
Black Baseball and Chicago: Essays on the Players, Teams, and Games of the Negro Leagues' Most Important City edited by Leslie A. Heaphy
https://amzn.to/3PAFiVg
Best Pitcher in Baseball, The: The Life of Rube Foster, Negro League Giant by Robert Charles Cottrell
https://amzn.to/3yR8hOS
Only The Ball Was White: A History of Legendary Black Players and All-Black Professional Teams by Robert Peterson
https://amzn.to/3wtnyDT
Bingo Long Traveling All-Stars and Motor Kings, The by William Brashler
https://amzn.to/39MEiNH
Josh Gibson: A Life In The Negro Leagues by William Brashler
https://amzn.to/39JBBw1
