America's Littlest Brother (@VinVoltage) / X
Portland Stumptown_Mavericks Baseball Club, Northwest Independent Baseball League, Portland Adult Baseball
Portland Mavericks Scheduled Appearance August 20th – Minor League Sports Report
The Incredible History of Big League Chew
Portland Mavericks - Wikipedia
Bing Russell and the Mavericks of Baseball
How Jim Bouton and his Portland Maverick teammate invented Big League Chew - The Athletic
Friends, family mourn Jim Swanson, a part of Northwest baseball lore and ex-owner of Swannie's Sports Bar
The Battered Bastards of Baseball (2014) - IMDb
The Battered Bastards of Baseball: The unlikely heroes of the Portland Mavericks