Throwback: The truth about George Halas and the NFL's ban on black players - Windy City Gridiron
Chicago Bears founder George Halas played a part in everything for NFL - Chicago Sun-Times
Grave Story: George Halas (1895-1983) – RIP Baseball
Team History Pro Football Hall of Fame
Grave Story: George Halas (1895-1983) – RIP Baseball
Grave Story: George Halas (1895-1983) – RIP Baseball
George Halas, NFL coach, Chicago Bears, Pro Football Hall of Fame
Chicago Bears founder George Halas played a part in everything for NFL - Chicago Sun-Times
Grave Story: George Halas (1895-1983) – RIP Baseball
George Halas: Bears architect still going strong at 82 - Sports Illustrated Vault
George Halas' premature death
Ex-Bears great Ed Sprinkle elected to Hall of Fame
Chicago Bears founder George Halas played a part in everything for NFL - Chicago Sun-Times