John Harry Gerald Ruston OGS (1 October 1934 - 27 April 2010) was the 13th Bishop of St Helena from 1991 to 1999.
Ruston was born 1 October 1934 and grew up at Berkhamsted, Hertfordshire, where he was associated with the Parish of St Michael and All Angels, Sunnyside, before, during and just after World War II.
[5] Ruston was ordained to the episcopacy as Bishop Suffragan of Pretoria, being sent to oversee the Archdeaconry of the North centred on Pietersburg (now Polokwane).
In retirement, Ruston returned to South Africa after a brief visit to England and worked at Bot River, Bella Vista and Kenilworth in the Diocese of Cape Town.
A Requiem Mass was held on 18 May 2010 at the College of St Barnabas, Lingfield, Surrey.