Forgotten milestone: MLB's first Black umpire took the field for Cleveland Indians game
MLB appoints 1st black umpire crew chief
MLB appoints Kerwin Danley as its first black umpire crew chief
MLB appoints Kerwin Danley as its first black umpire crew chief
MLB appoints 1st black umpire crew chief
My Subculture: Umpiring. A Brief History Lesson, by Eric Milliron
MLB makes history by naming its first black and Latino-born umpire crew chiefs
Mayfield native Tripp Gibson to umpire first World Series, Sports
Official (gridiron football) - Wikipedia
April 11, 1966: Emmett Ashford makes history as first Black umpire in American League – Society for American Baseball Research
MLB appoints 1st black umpire crew chief – Sun Sentinel
Better Hate an Umpire: A Small Comprehensive Guide to 2023's Officiating Crews – Home of The Worst Fans in Baseball Podcast
Bill Klem - Wikipedia
MLB appoints Kerwin Danley as its first black umpire crew chief