The story of Canada's lone MLB umpire: From Saskatchewan to The Show
Marty Springstead, umpire in World Series - The Boston Globe
My Subculture: Umpiring. A Brief History Lesson, by Eric Milliron
History of Umpiring 5
Max Scherzer and the History of Ball-Doctoring Excuses and Denials - The New York Times
Bethel History Alum Named Best Umpire in Major League Baseball – CC 4th
Dale, we know you're gay.' How a Major League Baseball umpire came out - Outsports
Joe West getting booed while making MLB history is a perfect combination
MLB umpire rankings: Pat Hoberg is baseball's most accurate ump
The PUZZLING Origins of Umpire Signals
Baseball Umpires in 1921 – Society for American Baseball Research
Art Williams made history as 1st Black umpire in National League
1999 Baseball History - This Great Game