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.
Arthur Trethowan died in 1937.
Illtyd Trethowan died in 1993.
The cast of Election Results - 1959 includes: Ian Trethowan as Himself - presenter
Arthur Trethowan was born in 1863.
Illtyd Trethowan was born in 1907.
M. O. D. Trethowan has written: 'Do environmental statements consider the 'significant effect', direct or indirect, of a proposed development upon archaeology?'
Ian Glachan died in 2005.
Ian Shevill died in 1988.
Ian Abdulla died in 2011.
Ian Percival died in 1998.