MLB appoints 1st black umpire crew chief
Major League Baseball umpire timeline
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MLB appoints Kerwin Danley as its first black umpire crew chief
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MLB Umpire Bios
MLB appoints 1st black umpire crew chief
MLB appoints 1st black umpire crew chief – Sun Sentinel
1999-2023 MLB Umpire Rosters, Post Season and All Star Game Crews
Kerwin Danley named MLB's 1st black umpire crew chief
MLB Appoints First Black Umpire Crew Chief - FanBuzz
Adrian Johnson, Alan Porter named crew chiefs