Peyton Manning jersey banned because player's No. 18 is too close to name of local gang - CBS News
Colorado school district bans Peyton Manning's No. 18 jersey
Peyton Manning's Jersey Banned in Some Colo. Schools – NECN
Ban on Manning jerseys in Greeley-Evans District 6 schools still in place despite Super Bowl run – Greeley Tribune
Ban on Manning jerseys in Greeley-Evans District 6 schools still in place despite Super Bowl run – Greeley Tribune
Nike Peyton Manning #18 Denver Broncos Youth Game Jersey - Orange
Peyton Manning's USO tour journal - ESPN
Peyton Manning, American Football Database
May 18 edition by The Island News - Issuu
UCCS baseball sweeps Colorado Christian
Banning Manning: School says 18 represents gang