Ian Trethowan died on December 12, 1990, in London, England, UK of motor neurone disease.
Ian Trethowan's birth name is James Ian Raley Trethowan.
Ian Trethowan was born on October 20, 1922, in High Wycombe, Buckinghamshire, England, UK.
Illtyd Trethowan died in 1993.
Arthur Trethowan died in 1937.
The cast of Election Results - 1959 includes: Ian Trethowan as Himself - presenter
Illtyd Trethowan was born in 1907.
Arthur Trethowan was born in 1863.
M. O. D. Trethowan has written: 'Do environmental statements consider the 'significant effect', direct or indirect, of a proposed development upon archaeology?'
Ian Colin died in 1987.
Ian Syster died in 2004.
Ian Malone died in 2003.
Ian Weatherburn died in 1989.