He first worked as an NHL referee in 1999-2000.

NHL referees do not work playoff games in their final season.

Hern also served as an NHL referee and a goal judge.

Following his playing career, Ross became a NHL referee.

Before he became an NHL referee, VanMassenhoven was a police officer.

After his playing days ended, he had a lengthy career as an NHL referee.

Romeril then became an NHL referee until retiring in 1934.

From 1928 to 1929 he coached the Panthers and then for a decade was an NHL referee.

Storey became an NHL referee in 1950 and worked in the league until 1959.

Jason - 7 days ago I think NHL referees made a collective new year's resolution to give out more penalty shots.