The Life And Career Of Richard Dent (Story)
Chicago Bears - 1960 Season Recap
2012 Chicago Bears season - Wikipedia
2004 Chicago Bears season - Wikipedia
1920 Decatur Staleys season - Wikipedia
History of the Chicago Bears - Wikipedia
Chicago Bears, Once 7-1, Need a Victory, and Help, to Make Playoffs - The New York Times
Greg Olsen (American football) - Wikipedia
How Did The Bears Get The Name Monsters Of The Midway?