Team History Pro Football Hall of Fame
The Chicago Bears became the Chicago Bears 94 years ago - Windy
George Halas (aka Papa Bear) Founder of the Chicago Bears and the NFL
History of the Chicago Bears - Wikipedia
George Halas: Bears architect still going strong at 82 - Sports
Pro Football Journal: 1922 Cardinals vs Bears: Fist Fight and
The Chicago Bears 1940 NFL Title: Revenge of the Crybabies
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George Halas' premature death