Jackie Robinson broke baseball's color barrier 75 years ago
1947 Dodgers: Jackie Robinson's first game – Society for American Baseball Research
Dodgers Purchase Robinson, First Negro in Modern Major League Baseball
Jackie Robinson's Signing Caused a Financial Dispute - The New York Times
Robinson leaves lasting legacy, National Sports
Jackie Robinson in 1945: Signing with the Dodgers – Society for American Baseball Research
What happened the day Jackie Robinson made his major-league debut
Jackie Robinson's contract bought by the Brooklyn Dodgers, becomes first black player in major league baseball – New York Daily News
Jackie Robinson 1948 Brooklyn Dodgers Road Jersey
Jackie Robinson's historic baseball contracts that broke the color barrier up for sale
Jackie Robinson in 1945: Signing with the Dodgers – Society for American Baseball Research
1949 Jackie Robinson Signed Brooklyn Dodgers Contract, National, Lot #80070
Honoring the 75th anniversary of Jackie Robinson's Integration into Organized Baseball — Part 1, by Mark Everett Kelly
Robert Edward Auctions - The Premiere Sports Auction House