Education
Born in Auckland in 1923, McManemin was educated at Auckland Grammar School and became a pharmacist, with a shop in the Auckland suburb of Mount Roskill.
Born in Auckland in 1923, McManemin was educated at Auckland Grammar School and became a pharmacist, with a shop in the Auckland suburb of Mount Roskill.
He became involved in athletics administration, and was elected to the committee of the Auckland Centre of the New Zealand Amateur Athletic Association in 1944. He went on to become a sprint coach, mentoring New Zealand representatives including Doreen Porter, Valerie Morgan and Maurice Rae. He was chef de mission of the New Zealand team at the 1972 Olympic Games in Munich.
McManemin then went on to chair the organizing committee for that event.
McManemin served as president of both Athletics Auckland and Athletics New Zealand. A Freemason, he was grand master of Freemasons New Zealand from 1986 to 1988.
He died in Auckland in 2014.
A sprinter, McManemin was a member of the Old Grammarians" Club in Auckland.