MLB, Official Information, Umpires
Adrian Johnson, Alan Porter named crew chiefs
Jamie Samuelsen: Bad umps like Hernandez should be held more accountable
Adam Hamari - Wikipedia
Veteran MLB umpire Todd Tichenor reflects on working All-Star Game, western Kansas roots - Kansas State High School Activities Association
Todd Tichenor - Wikipedia
MLB 2020: Umpires Joe West, Gerry Davis differ on COVID-shortened season
Bob Engel, former MLB umpire with Bakersfield roots, dies at 84 with dubious distinction, Sports
ALCS umpires named for Lone Star Series between Rangers, Astros – NBC 5 Dallas-Fort Worth