John Percival (rugby league)
He took up refereeing in 1956 and controlled matches in the Auckland Rugby League competition. By 1960 he was receiving provincial appointments. He earned a reputation for being a dominant and "eagle-eyed" referee.
Percival is credited with innovating the penalty for backchat as he regularly used to march teams for the offence before it was added to the official rulebook.
His first Test match was in 1964 when the French toured New Zealand. Percival controlled 27 internationals between 1964 and 1980, the most for a New Zealand official. This included nine matches in the 1968 and 1975 World Cups. In 1995 Percival was one of the inaugural inductees onto the NZRL's Legends of League. He is an Auckland Rugby League Immortal.
- Lion Red 1988 Rugby League Annual, New Zealand Rugby Football League, 1988. p.81
- "Graham Lowe: Sonny and Bill". The New Zealand Herald. 1 October 2004. Retrieved 7 October 2011.
- November 2009 Newsletter Auckland Rugby League
- Legends of League New Zealand Rugby League
- Stacey Jones, Auckland Rugby League Immortal Archived 2011-07-24 at the Wayback Machine. est1995.co.nz, 21 September 2003