Major League Umpires
Rockies Insider: With dismal Marlins in town, Colorado must fry
Long time NL umpire Dutch Rennert dies at 88 - NBC Sports
Former MLB umpire Dutch Rennert, owner of one of MLB's best strike
Dutch Rennert 前大聯盟裁判Dutch Rennert在前天過世,享壽88歲
Major League Umpires
Former NL Umpire Dutch Rennert Passes Away at 88 - Close Call
April 3, 1982: Twins shut out Phillies in exhibition to open the
Laurence Rennert Obituary (1930 - 2018) - Elkton, WI - Oshkosh
Rockies Insider: With dismal Marlins in town, Colorado must fry
What are the official timeout rules in baseball? - Quora
Major League Umpires
Members of baseball community who died in 2018
Notable sports deaths of 2018 - The Boston Globe