Ump files racial discrimination suit against MLB
Grand Challenges: Anti-Black Racism Initiative
Baseball umpires aren't blind. They just have trouble breathing, study of balls and strikes shows
About – The Baseball Umpire
Minority Baseball Prospects shines spotlight, showcases Black players
Grand Challenges: Anti-Black Racism Initiative
Baseball, Bias and Decision-making - Knowledge at Wharton
Baseball Prospectus Insightful analysis for the discerning baseball fan
Angel in the Infield - Baseball ProspectusBaseball Prospectus
Some Games Are Harder to Umpire Than Others - Baseball ProspectusBaseball Prospectus
Sorry, judges, we umpires do more than call balls and strikes - The Washington Post
Grand Challenges: Anti-Black Racism Initiative