Retired Jerseys - BYU Athletics - Official Athletics Website - BYU Cougars
List of Major League Baseball retired numbers - Wikipedia
Retired Uniforms by Division: National League Central - Beyond the Box Score
List of Major League Baseball retired numbers - Wikipedia
Scherzer honored with jersey retirement - PowerMizzou
Retired shirt numbers: Clubs and players to give & receive honour
Retired Uniforms by Division: National League East - Beyond the Box Score
Full list of Atlanta Braves retired numbers -- and when they were retired
Retired number - Wikipedia