 His model for the various figures of St John was his friend, photographer David Gwinnutt

Procktor's painting "The Guardian Readers" was used as the cover art for Elton John's 1976 album, "Blue Moves".Procktor was elected a member of the Royal Academy in 1996 and died seven years later, aged 67.Procktor lived in Manchester Street, Marylebone, central London (in a flat formerly occupied by William Coldstream), where he socialised with, among others, Derek Jarman, Francis Bacon, and Cecil Beaton (several of Beaton's photographs of Procktor are in the National Portrait Gallery; Procktor's own 1967 pen and ink drawing of Joe Orton is also in the Gallery's collection).