How 'Top Gun' led to Notre Dame baseball postseason mustache trend
Sammy Stewart - Wikipedia
The 50 Greatest Mustaches in MLB History, News, Scores, Highlights, Stats, and Rumors
The Random Ballplayer: Special: The Top Mustaches in Baseball History
MLB players who will be remembered forever (or not) - Sports Illustrated
The Strangest, Funniest, and Most Fascinating Baseball-Reference Pages - The Ringer
Who Has the Best Facial Hair in Baseball History?, History
Mickey Morandini - Wikipedia
Being Gabe Kapler: Inside the mind of the San Francisco Giants' nonconformist manager - ESPN