In 1973, new fashion for baseball umpires was strictly a judgment call - The Boston Globe

To former Labor Board chair, MLB's acrimony is unlike what's come before. That's a good thing. - The Boston Globe

Who had the most powerful throwing arm ever? - Quora

Stay Home With SABR: 2020 Dispatches from the Boston Chapter – Society for American Baseball Research

Thanks - San Fernando Valley Baseball Umpires Association

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WATCH: Marlins pitcher loses it after umpire calls three balks in same inning, Mattingly also tossed

San Fernando Valley Baseball Umpires Association

Are there different umpires for the American and National League? - Quora

Has baseball expanded the strike zone this year without changing the rules? - Quora

IPFW www.IndianaRBI.com

John Racanelli – SABR's Baseball Cards Research Committee

Remembering Gene Michael

The House That Ruth Built A New Stadium, The First Yankees Cham, PDF, New York Yankees