Having looked up the obvious candidates, my oldest three - in reverse order - is:
- Emlyn Hooson (born 26 March 1925)
- Clement Freud (born 24 April 1924)
- George Mackie (born 10 July 1919)
Jeremy Thorpe, Eric Avebury and Cyril Smith are all younger than this trio, but there may be others I have forgotten. I was surprised to discover that Roderic Bowen had still been alive when he died a few years ago.