California baseball history. Oakland Oaks
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A brief history of memorable Red Sox-A's games at Oakland Coliseum
Pacific Coast League Baseball in Emeryville: The History of the Oakland Oaks Ballpark - The E'ville Eye Community News
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Jimmy Claxton blazed trails via baseball cards
Baseball History - Oakland - LocalWiki
MLB: Are the Vegas-bound Oakland A's baseball's worst team ever?
The Pacific Coast League (PCL) - West Coast Cardboard
File:Charlie Gassaway - 1947 Smith's Oakland Oaks.jpg - Wikipedia
1955 Oakland Oaks Minor League Team Signed Baseball With Lefty O'Doul — Showpieces Sports
