KC Chiefs legend, Hall of Famer Len Dawson and Super Bowl IV
Chiefs' Super Bowl curse ends - Chicago Sun-Times
Hank Stram, American Football Wiki
Chiefs legend Len Dawson has died - Arrowhead Pride
65 Toss Power Trap: The Madness of Super Bowl IV and the Play That Defined It - Sports Illustrated
Remember the last time the Chiefs played in the Super Bowl? The Kapp family does
Kansas City Chiefs' Super Bowl history from 1966 to 2023
Chiefs' historic defense led Kansas City to Super Bowl win in 1970 - Washington Times
Kansas City Chiefs changed pro football in late 1960s
Flashback Friday: Super Bowl IV Chiefs 23, Vikings 7
Super Bowl IV, American Football Wiki
Vikings' excellence of the '70s began with Super Bowl IV