Today in Baseball History: Umpire John McSherry dies after collapsing on the field - NBC Sports
World Series ump crew youngest in years, nod to K-zone tech
10 Secrets of MLB Umpires
Start Positions - Two Man - UmpireBible
Wild card series umpires: Dodgers-Brewers crew chief is Jim Reynolds - True Blue LA
Umpire, Baseball Wiki
Valley News - An Extra Set of Eyes: NECBL Implements Three-Man Umpire Crews
TWO UMPIRE BASE MECHANICS. - ppt video online download
MLB 2022 Division Series Umpire Crews : r/baseball
Umpiring crew hitches a ride on Twins' flight
Kerwin Danley, Alfonso Marquez make MLB history with promotion to crew chief
World Series 2017: Kentucky natives join umpiring crew