MLB, Official Information, Umpires
Association of Minor League Umpires
Working the Major Leagues - UConn Today
Tim Tichenor will be plate umpire for MLB's All-Star Game at
Joe West to retire as MLB umpire - The Washington Post
Umpire Angel Hernandez loses again in lawsuit vs MLB when appeals
MLB Must Embrace Robot Umpires When Baseball Returns
MLBUA
MLB And Umpires: Inside the MLBUA - Dodger Yard
Joe West breaks umpiring record with 5,376th game