MPs
- Viscount Hinchingbrooke February 23, 1950 - June 15, 1962
- Mr Guy Barnett November 22, 1962 - October 15, 1964
- Mr Evelyn King October 15, 1964 - May 3, 1979
- Viscount Cranborne May 3, 1979 - June 11, 1987
- Mr Ian Bruce June 11, 1987 - June 7, 2001
- Mr Jim Knight June 7, 2001 - ?