John Robin Thistlethwayte (1935-2019) (1935–2019) Parents Arthur Donald Claude Thomas Thistlethwayte Gwladys Eileen Berry Children Mark Edward Thistlethwayte Sophia Mary Clare Thistlethwayte Hugo Seymour Thistlethwayte Siblings Peter Thomas Thistlethwayte Seymour Evelyn Thistlethwayte Thomas Noel Thistlethwayte Partners Mary Katherine Grasett