San Francisco Seals (PCL) - Wikipedia

The Local Nine: San Francisco Seals Baseball, 1903-1957

MLB: The Defunct Saga - Bibliography Added - Page 11 - Concepts - Chris Creamer's Sports Logos Community - CCSLC - SportsLogos.Net Forums

Frank Seward – Society for American Baseball Research

2007.1.290 OMCA COLLECTIONS

San Francisco Seals (PCL), Pro Sports Teams Wiki

Triple-A Baseball, the Pacific Coast League: 2009 attendances. «

MLB: The Defunct Saga - Bibliography Added - Page 11 - Concepts - Chris Creamer's Sports Logos Community - CCSLC - SportsLogos.Net Forums

Seal of San Francisco - Wikipedia

Seals Stadium, Baseball Wiki

The PCL: San Francisco Seals – Ebbets Field Flannels

MORE