SABR Century Committee: 1920 Cleveland Indians World Series Centennial Panel
October 12, 1920: Cleveland Indians win their first World Series – Society for American Baseball Research
NIAF – mlbblogger
reviews Archives • Cleaver Magazine
Stamps and Stickers – SABR's Baseball Cards Research Committee
Polo Grounds (New York) – Society for American Baseball Research
The House That Ruth Built A New Stadium, The First Yankees Cham, PDF, New York Yankees
When did all of the professional baseball leagues merge into one major league called “Major League Baseball” in the United States? - Quora
Podknife - SpyCast by SpyCast
Programs Greater Cape May Historical Society
The Hearst Sandlot Classic - Introduction: The Esquire's Game - 1944-1946
The Baseball Analysts: Baseball Beat Archives