African-American NHL referee Jordan Samuels-Thomas is looking to break barriers - Mile High Sports
2022-2023 NHL rule changes: Here's why refs can revoke major penalties
NHL notebook: Women refs could make their way to NHL via American Hockey League | The Seattle Times
List of NHL on-ice officials - Wikipedia
Color of Hockey: Alphonso gearing up for 2019-20 season
Greg Devorski details life as NHL linesman
Pollock to referee 1,500th NHL game after bad luck turned to good fortune
NHL Rules Court: Three-point games? Hand passes? Referees raising both arms on penalties? - The Athletic
Current Officials - NHLOA
NHL names O'Halloran, O'Rourke, Rooney and Watson Stanley Cup finals referees | ProHockeyTalk | NBC Sports
NHL players name the Top 5 “worst referees in the league.” - HockeyFeed
N.H.L. Fires Referee for Comment on Penalty Call - The New York Times
How Many Referees in a Hockey Game? - Gaimday
In 32 years and more than 4,000 hotel nights, NHL linesman Brian Murphy has seen it all - The Boston Globe
These Guys Rule: Sorting Hockey's Referees and Linesmen
NHL needs complete overhaul in approach to officiating crisis
American Hockey League on Twitter: "AHL referee Jordan Samuels-Thomas's debut in the NHL last night also marked the first time in league history that two Black on-ice officials worked a game together.
NHL officiating: After ref's audio in Red Wings game, a watershed moment?
Official (ice hockey) - Wikipedia
Black on-ice officials work NHL game together for first time
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Getting to Know the NHL Rulebook: Referees - Winging It In Motown
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Brendan Gallagher is apparently still on the NHL referees' hit list - Eyes On The Prize
Know Your Rule: Top 5 NHL Officials | News, Scores, Highlights, Stats, and Rumors | Bleacher Report
Current Officials - NHLOA
Top 5 Best NHL Referees - YouTube
