Charley Trippi, Versatile Football Hall of Famer, Dies at 100 - The New York Times
Football Chicago Cardinals Vintage Sports Pennants and Flags for sale
NFL reaches West Coast, is fairly stable despite war in '40s
Memories of the Cardinals' Last N.F.L. Championship - The New York Times
Arizona Cardinals - Wikipedia
Early 1940's Chicago Cardinals Full Sized NFL Football
A Century of Chicago Bears Football - Chicago History Museum
1947 NFL Championship Game
A Century of Chicago Bears Football - Chicago History Museum