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Gibson makes final call: MLB umpire retires after 24-year career : r/baseball
MLB Rumors: Ted Barrett & Greg Gibson Among 10 Umpires Retiring
Gibson makes final call: MLB umpire retires after 24-year career : r/baseball
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Greg Gibson, The Home Plate Umpire, Retires After 25 Years of NL & MLB Baseball
Mayfield native Tripp Gibson to umpire first World Series, Sports
Bob Gibson once upon a .406