Throwback: The truth about George Halas and the NFL's ban on black players - Windy City Gridiron
History of how NFL playoffs have expanded
1932 Chicago Bears NFL Champions
1932 Playoff Game Program Pro Football Hall of Fame
Lot Detail - NOV. 6, 1939 CHICAGO BEARS VS. GREEN BAY PACKERS NFL GAME PROGRAM
1933 NFL Championship Game
Chicago Bears, History & Notable Players
Why you should root for the Chicago Bears
Heretic, Rebel, a Thing to Flout: Bears Win the Not Quite First NFL Championship Game Indoors
Offically Licensed NFL Signature Football - Bears
The 1932 NFL Indoor Championship
1932 Chicago Bears vs Portsmouth Spartans Championship Program 1st Championship
Chicago Timeline: 1932 Bears won the NFL Championship, Chicago Public Library
League's 1st championship game, draft highlight NFL in 1930s - The San Diego Union-Tribune