List of Major League Baseball retired numbers - Wikipedia
List of Major League Baseball players from Japan - Wikipedia
Oakland Athletics - Wikipedia
Umpire (baseball) - Wikipedia
MORE
Major League Baseball Players Association - Wikipedia
Last player to wear No. 42 for each MLB team
List of Major League Baseball retired numbers - Wikipedia
Catfish Hunter, Baseball Wiki
upload.wikimedia.org/wikipedia/en/thumb/2/27/MLB-A
Every MLB team's retired numbers
St. Louis Cardinals - Wikipedia
Retired Numbers, New York Mets Wiki
Dennis Eckersley, Baseball Wiki