On Sept. 1, 1971, the Pirates made history with baseball's 1st all-minority starting lineup
Frank Robinson, baseball icon and civil rights activist – The Observer
Clyde Sukeforth, the man who discovered Jackie Robinson and Roberto Clemente, is the Forrest Gump of baseball - ESPN
Where Cooperstown Baseball Hall of Famers played college baseball
Jackie Robinson - Wikipedia
The best players to wear every jersey number in Pirates history - The Athletic
Jackie Robinson - Wikipedia
Best debut season in each MLB team's history
Jackie Robinson, Brooklyn Dodgers clobbered Beaumont Exporters in 1949
A look at the best team in the history of each MLB franchise