[3] He met his wife Peggy at Redleaf Pool, Double Bay and they were married for 67 years until her death in January 2013.
[4] Peggy's support for her husband's work resulted in her being made a life member of the Australian Commonwealth Games Association and being awarded the Medal of the Order of Australia.
[3] During these years he has attended hundreds of boxing tournaments acting as referee, judge, coach, and arena manager.
[2] In 1989, he was elected to the position of vice-president of the Oceania Bureau by the International Amateur Boxing Association (AIBA), and was appointed as the chairman of the Technical and Rules Commission.
[5] In 1969, Tunstall became secretary and treasurer of the Australian Commonwealth Games Association and he held the position for 30 years until 1998.
At the 1990 Auckland Commonwealth Games, he suggested New Zealand be considered the seventh and eighth states of Australia.
Four years later at the 1994 Victoria, Canada Commonwealth Games, he threatened to send Cathy Freeman home for carrying both the Australian and Aboriginal flags during her 200 m victory lap.
In 2009, Tunstall was accused of discrimination and racism against indigenous boxers in the meeting to disband Boxing NSW.
[7] George Ptolemy claimed that, when he suggested a young Aboriginal boxer be sent to the Olympics, Tunstall replied: "We need people who know how to use a knife and fork.