The History of Umpiring

Worst MLB Umpire Calls in Baseball History

Baseball History: Bill Dinneen

Marty Springstead, umpire in World Series - The Boston Globe

Female umpiring crew makes history in Cuba's Baseball National League - World Baseball Softball Confederation

Female umpire from Sugar Land makes history at Little League World Series

Why do baseball players argue pitches considering a home plate umpire has never overturned a call after being lectured by a hitter in the history of the game? - Quora

Women in Blue: The Day The Umpires Made History

Today in Baseball History: Umpire John McSherry dies after collapsing on the field - NBC Sports

Looking Back: First NWL Umpire Works a Major League Baseball Game - Northwoods League

Umpire's Ejection of Three Blind Mice Deejay Was Historically Correct Call, News, Scores, Highlights, Stats, and Rumors

MLB History: New Umpire Union Founded After Mass Resignations

MLB's Umpires. A problematic history, a modern dilemma. — A Historic Take