10 Major League Baseball umpires retire in historic exodus
Chicago Cubs team ownership history, 1876-1919 – Society for American Baseball Research
Ten MLB Umpires Retiring, Most Since 1999
MLB Rumors: Ted Barrett & Greg Gibson Among 10 Umpires Retiring
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Mariners win finale vs. Astros in extras
Evan Carter, Corbin Carroll and MLB's precocious rookie class unfazed by pressure-packed playoffs, Baseball
MLB will see 10 rookie umps replace veterans as position faces more changes, challenges than ever - The Athletic
Eddie Murphy – Society for American Baseball Research
10 MLB Umpires Retire - Baseball Says Bye to 261 Years of On-Field Major League Umpiring Experience
Ten MLB umpires are 'set to retire at the end of the month' - the LARGEST turnover since 1999
Twins whiff their way to ALDS loss to Astros with 14 more strikeouts by MLB record holders, Baseball
SF Giants' Kapler will mix and match as NL adds designated hitter
Home plate umpires are getting better. Will that hold off the robots?
Baseball Umpires in 1921 – Society for American Baseball Research