A Day In Wrigley Field History: April 23, 1914 - Bleed Cubbie Blue
Wrigley Field: A Century of Survival
Wrigley Field still 'home' 100 years later
today in history
Wrigley Field, Map, History, & Facts
Wrigley Field: a century of survival - Document - Gale Academic OneFile
Federal League Park (Indianapolis, IN) – Society for American Baseball Research
Wrigley100 -- Chicago Tribune
Wrigley Field still 'home' 100 years later
History of Wrigley Field - Wikipedia
History of Wrigley Field - Wikipedia