Denver Broncos - Wikipedia
Peyton Manning officially introduced as new Broncos quarterback
NFL Record and Fact Book 2012
Tripucka had just one request for Manning to wear No. 18 - a Super
Frank Tripucka, inaugural QB for Denver Broncos, dies
Peyton Manning to retire after 18 NFL seasons, five MVPs, two
New Raiders Long Snapper Travis Tripucka Brings a Familiar Name
Buckley: Who's next? Examining the state of Boston's retired
Peyton Manning going into the Denver Broncos Ring of Fame
Ex-Broncos QB wouldn't mind if No. 18 was reissued to Manning
Denver Broncos: Legendary jersey numbers that should be retired
Colts 20-34 Broncos (Sep 18, 2016) Game Recap - ESPN
Frank Tripucka, first Denver Broncos QB, dies at 85 years old
Farewell - Sports Illustrated Vault
Colts 20-34 Broncos (Sep 18, 2016) Game Recap - ESPN