When the Bears Were a Broke Factory Team – Chicago Magazine
50 years after playing his last game for the Bears, Brian Piccolo's legacy lives on - The Athletic
Brian's Song (TV Movie 1971) - IMDb
Dan Snyder Actually Isn't the Redskins' Worst Owner - Washingtonian
Pro Football Journal: Remembering George Halas (Happy Birthday)
George Halas – Society for American Baseball Research
Pro Football Hall of Famer Bud Grant dead at 95
CHICAGO BEARS, UNHAPPY HEIRS, AND A STOCK DISPUTE - The New York Times
George Halas Pro Football Hall of Fame