1999-2023 MLB Umpire Rosters, Post Season and All Star Game Crews
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MLB makes history by naming its first black and Latino-born umpire crew chiefs, FOX 4 Kansas City WDAF-TV
Baseball: A trip through time with former MLB umpire Bill Hohn – The Times Herald
Major League Baseball Appoints First Black Umpire Crew Chief, News
MLB names first Black and Latino born umpire crew chiefs – Pro Player Insiders
Sam holbrook hi-res stock photography and images - Alamy
MLB - Page 3 PBS NewsHour
Adrian Johnson, Alan Porter named crew chiefs
MLB suspends, fines umpires after second mistake in two days
MLB Umpire: Kerwin Danley becomes the first black crew chief
Embattled umpire Ángel Hernández alleges MLB altered evaluations to hurt minorities
Do not dismiss Angel Hernandez's suit - Beyond the Box Score