CHARLES O. FINLEY – Oakland Athletics History
CHARLES O. FINLEY – Oakland Athletics History
83 Charlie O The Mule Stock Photos, High-Res Pictures, and Images - Getty Images
SABR Digital Library: Mustaches and Mayhem: 1972-74 Oakland A's – Society for American Baseball Research
A mule goes to a Kiwanis luncheon; vintage photos show what happened next
Charlie-O — Baseball's Favorite Mule, by Michael Murphy, SMC Sports Journalism
FINLEY YEARS – Oakland Athletics History
CHARLES O. FINLEY – Oakland Athletics History
Oakland Athletics: First Mascot - Charlie O the Mule
FINLEY YEARS – Oakland Athletics History
Charlie-O — Baseball's Favorite Mule, by Michael Murphy, SMC Sports Journalism
Charlie Young - Men's Track & Field - Eastern Michigan University Athletics
CHARLIE 'O THE MULE® – Oakland Athletics History
When Oakland A's owner Charlie Finley pulled out all the stops for Opening Day