2012 NFL free agency -- Peyton Manning, Denver Broncos agree to $96M deal - ESPN
Peyton Manning announces his retirement
The History of Notre Dame Quarterbacks - The Point After Show
Denver Ranked as One of the Best Sports Cities in America
Tripucka had just one request for Manning to wear No. 18 - a Super Bowl win - Mile High Report
Frank Tripucka, first Denver Broncos QB, dies at 85 years old
This date in sports history: Sept. 15
Woody Paige: Some QB history in Denver a sore subject – The Denver Post
Peyton Manning - Alchetron, The Free Social Encyclopedia
Floyd Little, Broncos Hall of Fame running back, dies at age 78 – Greeley Tribune