File:Seattle Seahawks Retired Numbers.jpg - Wikipedia
File:Rosbotham retired number 12.png - Wikipedia
Houston Astros - Wikipedia
File:Lasorda2retired.svg - Wikipedia
File:Rockies Retired 33.png - Wikipedia
New York Yankees - Wikipedia
File:Elvin Hayes UH retired number.jpg - Wikipedia
File:Royals 5 GeorgeBrett.png - Wikipedia
File:Red sox retired 4.png - Wikipedia
List of National Football League retired numbers - Wikipedia
Boston Bruins - Wikipedia
File:Michael Young UH retired number.jpg - Wikipedia
File:Packers retired number 5.svg - Wikipedia
List of National Football League retired numbers - Wikipedia
File:RedSox 26.png - Wikipedia