MLB hires first full-time umpire from Puerto Rico
Beyond the grunt: Umpires mic up, and baseball changes a bit
World Series umpire delivers flawless performance during Game 2
Veteran MLB Umpire and World Series Crew Chief Gerry Davis Joins
MLB Crew Chiefs to Wear PA Microphones, Starting in 2022
Volunteer Umpires Announced for the 2022 Little League® World
Layne to be World Series umpire crew chief
2020 World Series umpires: Bill Miller leads 7-man crew for
World Series 2022: Who are umpires for Phillies – Astros?
MLB Umpires announced for 2015 World Series – The Denver Post
MLB appoints first black and Latino-born umpire crew chiefs
Close Call Sports & Umpire Ejection Fantasy League: 2023 MLB
MLB announces seven-man umpire crew for World Series
Jeff Kellogg chosen as umpire crew chief for World Series
New Wireless Audio Lets MLB Umpires Make All the Calls Very Loud