1933 NFL season - Wikipedia
Bears Are 1933 NFL Champions By Underwood Archives
50 years ago, Starr, Packers shined in epic NFL title game
Championship Game Giants 30 Bears 13, December 9, 1934
Tickets - Chicago Bears Post - Season Games (1933-Present): TicketCollector Set Image Gallery
Flashback Friday: 83 years ago today, the Bears won the first ever NFL Championship game
A Century of Chicago Bears Football - Chicago History Museum
Bears Are 1933 NFL Champions By Underwood Archives
Bears Are 1933 NFL Champions By Underwood Archives
Great Games of the Gridiron: The NFL Championship Game 1933-1965 by Mr. Jim Rice (2013-09-05): : Books