Jim Bouton, 1939–2019 – SABR's Baseball Cards Research Committee
Sweet Lou's cardboard – SABR's Baseball Cards Research Committee
Best Brewers players by uniform number
864 Seattle Pilots Stock Photos, High-Res Pictures, and Images
C.A.: 1970 Topps Seattle Pilots
Sinking Ship: Collecting the 1969 Seattle Pilots
Jim Bouton dies at 80
Seattle Pilots
jongree – SABR's Baseball Cards Research Committee
Legacy of 'Ball Four' lives on at Museum
Seattle Pilots: Short Flight Into History