MLB Umpires: 2016 Review, World Series Preview
Blue Jays manager John Gibbons making a run at club record for ejections - The Globe and Mail
Umpire (baseball) - Wikipedia
World Series: After Video Review, Umpire Crew Perfect in San Francisco Games, News, Scores, Highlights, Stats, and Rumors
World Series 2022: Who are umpires for Phillies – Astros?
Adrian Beltre's nemesis named crew chief for World Series umpires
James Hoye to head ALCS umpires; Dan Iassogna in charge of NLCS - ESPN
Old School Umps - BallNine
Barksdale, Hoye, Iassogna and Porter will be the umpire crew chiefs for Wild Card Series
Marquette native Adam Hamari to umpire Major League Baseball wild card playoff series between Toronto, Minnesota
James Hoye to head ALCS umpires and Dan Iassogna in charge of NLCS umps - Newsday
World Series umpire crew not much older than Justin Verlander
Murray State alum Gibson will umpire World Series, Murray State