42: A Story of Baseball's Integration - Canadian Baseball Hall of Fame and Museum

Leo Durocher (1905-1991) was baseball's all-time leading cocky, flamboyant, and galvanizing character, casting a shadow across several eras, from the time of Babe Ruth to the Space Age Astrodome, from Prohibition through the Vietnam War. For more than forty years, he was at the forefront of the game, with a Zelig-like ability to be present as a player or manager for some of the greatest teams and defining baseball moments of the twentieth century.

Leo Durocher: Baseball's Prodigal Son [Book]

Nashua recognized for historic role in racially integrating baseball in the 1940s

The Secret History of Black Baseball Players in Canada's Great White North

Jackie Robinson's Signing Caused a Financial Dispute - The New York Times

Our Stories Baseball Hall of Fame

History of baseball in the United States - Wikipedia

A Pilgrimage to Cooperstown – The Kept Faith

Setting the Record Straight

Setting the Record Straight

The Story of MLB's Integration Goes Way Beyond Jackie Robinson - InsideHook

Jackie Robinson The Winning Run

The Real Story of Baseball's Integration That You Won't See in 42 - The Atlantic