Ex-Bears chairman McCaskey dies
Halas, the Father of the NFL - Dawgs By Nature
NFL 100 – George “Papa Bear” Halas «
Michael McCaskey, who succeeded Halas as Bears' leader, dies – The
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Longtime Bears executive Michael McCaskey, grandson of team
Bears-Packers: 'Cheddar Curtain' Rivals For The Ages : NPR
Bears remember Sweetness and Papa Bear before trying to create
George Halas Historical Marker
Former Bears CEO Michael McCaskey dies at 76 after battle with cancer
The TTABlog®: Chicago Bears Oppose PAPA BEAR for Clothing
GEORGE HALAS, FOOTBALL PIONEER, DIES - The New York Times
Kevin Warren Ready to Embrace New Challenge as Bears President