Last player to wear No. 42 for each MLB team
An oral history of the night baseball stopped to retire No. 42 forever - ABC7 New York
Jackie Robinson Day Recap
10 Things You Didn't Know About Jackie Robinson - Silver Dolphin Books
Mariano Rivera Wearing Jackie Robinson's 42 to the End - The New York Times
April 15, 1997: Ken Griffey Jr. wears number 42 to honor Jackie Robinson on 50th anniversary – Society for American Baseball Research
Jackie Robinson Day - Wikipedia
Facts about Jackie Robinson, The Learning Key
Jackie Robinson - Facts, Quotes & Stats
An oral history of the night baseball retired Jackie Robinson's No. 42 - ESPN
Jackie Robinson — Articles
The Greatest MLB Showdown Project: Happy Jackie Robinson Day