These are the 7 teams that have repeated as champions in the Super Bowl era
Countdown to Super Bowl XLIX: A game-by-game guide to the NFL's showcase game – New York Daily News
Original January 14, 1968 Super Bowl II 2 Program - Packers vs Raiders
Countdown to Super Bowl XLIX: A game-by-game guide to the NFL's showcase game – New York Daily News
Chicago Bears - Wikipedia
Official Super Bowl 51 Game Program
Jan. 26, 1997: Power and the Glory. Packers win Super Bowl XXXI.
Why has an NFL team never played the Super Bowl at their home stadium? Is it rigged? - Quora
100% original & authentic..seldom seen … NOT a reprint …… on site program at Orange Bowl in Miami, Florida …… Green Bay Packers defeat Oakland
Original January 14, 1968 Super Bowl II 2 Program - Packers vs Raiders
57 facts & tidbits from Super Bowl history
One Sports Writer Has Been to Every Super Bowl. Will This Year Be His Last?
Jan. 26, 1997: Power and the Glory. Packers win Super Bowl XXXI.