Greatest Coaches in NFL History - George Halas - ESPN
Throwback: The truth about George Halas and the NFL's ban on black players - Windy City Gridiron
George Halas was a pro basketball pioneer as well
Class Of 1963: George Halas, Chicago Bears, Quite simply, the Chicago Bears wouldn't be the Chicago Bears without Papa Bear, George Halas., By Pro Football Hall of Fame
George Halas: Bears architect still going strong at 82 - Sports Illustrated Vault
Papa Bear” George Halas Born This Day 1895
Grave Story: George Halas (1895-1983) – RIP Baseball
George Papa Bear Halas - Founder, Owner - Chicago Bears