Mariano Rivera Wearing Jackie Robinson's 42 to the End - The New York Times
Jackie Robinson Day: The only time MLB players can wear No. 42
42 facts about Jackie Robinson to celebrate the 75th anniversary of his breaking the color barrier
MLB ready to celebrate Jackie Robinson Day - Jackie Robinson
The History of 42, Before 42 Made History
What Is Jackie Robinson Day? Everything You Need to Know as MLB Remembers First African American Player
Jackie Robinson Memorabilia is Focus of Upcoming Auction
The Real Story of Baseball's Integration That You Won't See in 42 - The Atlantic
Jackie Robinson: A Legacy of Activism - The American Prospect
Jackie Robinson, Biography, Statistics, Number, Facts, & Legacy
National Museum of African American History and Culture Displays Jackie Robinson's Jersey in Honor of 75th Anniversary of Robinson's Major League Debut
Remembering Jackie Robinson and The Impact He Left
Shortstops: The guts not to fight
After Jackie Robinson, MLB integration was halting - The Washington Post
Last player to wear No. 42 for each MLB team