Who was Jackie Robinson?
List of MLB Players Who Last Wore No. 42
Twins, White Sox celebrate Jackie Robinson Day
Robinson's impact celebrated by White Sox, MLB
A Special Number and a Special Place, by New York Mets
Colorado Rockies to retire number 33 in honor of Larry Walker
Rockies will retire Todd Helton's No. 17 in August - Purple Row
The Real Story of Baseball's Integration That You Won't See in 42 - The Atlantic
Behind the Icon Mitchell & Ness Nostalgia Co.
Gooden's No. 16 and Strawberry's No. 18 to be retired by Mets next season
Mariano Rivera Wearing Jackie Robinson's 42 to the End - The New York Times