How Much Do NFL Refs Make Per Game and Season? | TSR
1960's Jim Tunney Game Worn NFL Referee Jersey. ... Football | Lot #51347 | Heritage Auctions
Ask Sam Farmer: Are there throwback uniforms for NFL officials? - Los Angeles Times
Crampton Hanging Up Official's Whistle After 46 Years of Giving Back
Sarah Thomas: Kicked out of basketball, she made it to the Super Bowl | CNN
Seeing yellow: The data behind penalties in the NFL | National | derbyinformer.com
Why Referees' Shirts Are Black-and-White Striped | Mental Floss
Former NFL ref says: Pay no heed to Marshall's outburst
File:Referee announces call at UCLA at Cal 10-25-08.JPG - Wikimedia Commons
NFL | John Parry: interview with the veteran NFL referee John Parry: interview with the veteran NFL referee - AS USA
Football Referee Uniforms History . url: http://safootballuniformss.blogspot.com/2015/10/football-referee-uniforms-hi… | Football referee, Referee uniforms, Referee
Official (gridiron football) - Wikipedia
AFL On-Field Officials
Former Iowa Hawkeye Player Is 4th Super Bowl Official From Iowa
Hanover resident Ron Torbert to referee Super Bowl 56 in 'highlight' of 33-year officiating career – Baltimore Sun
Super Bowl ref Carl Cheffers on defensive holding call: It was a clear jersey grab - ProFootballTalk
Here's a guide to targeting in college football and the NFL - NBC Sports Chicago
New ref uniforms announced for 2022-23 season : r/KansasCityChiefs
Football Zebras selects its 2021 slate of officials worthy of enshrinement in Hall of Fame – Football Zebras