The Life And Career Of George Allen (Story)
Chicago Bears - Wikipedia
George S. Halas, The Grainger College of Engineering
Curly Lambeau - Wikipedia
Jerry Richardson - Wikipedia
George Halas ¿Qué fue de?
Papa Bear: The Life and Legacy of George Halas: Davis, Jeff: 9780071477413: : Books
George S. Halas Biography
The most famous athlete from each of New York's 62 counties