| 3 May 1979 | UK General Election 03 May 1979 | East Hertfordshire | UK Parliamentary general election | Conservative Party | 41,599 | 55.5% | 1st | Yes |
| 10 October 1974 | UK General Election 10 Oct 1974 | East Hertfordshire | UK Parliamentary general election | Conservative Party | 29,334 | 44.6% | 1st | Yes |
| 28 February 1974 | UK General Election 28 Feb 1974 | East Hertfordshire | UK Parliamentary general election | Conservative Party | 32,032 | 45% | 1st | Yes |
| 18 June 1970 | UK General Election 18 Jun 1970 | East Hertfordshire | UK Parliamentary general election | Conservative Party | 37,668 | 54.7% | 1st | Yes |
| 31 March 1966 | UK General Election 31 Mar 1966 | East Hertfordshire | UK Parliamentary general election | Conservative Party | 29,618 | 46.6% | 1st | Yes |
| 15 October 1964 | UK General Election 15 Oct 1964 | East Hertfordshire | UK Parliamentary general election | Conservative Party | 29,749 | 48.2% | 1st | Yes |
| 8 October 1959 | UK General Election 08 Oct 1959 | East Hertfordshire | UK Parliamentary general election | Conservative Party | 28,201 | 51.4% | 1st | Yes |
| 26 May 1955 | UK General Election 26 May 1955 | East Hertfordshire | UK Parliamentary general election | Conservative Party | 26,936 | 56.9% | 1st | Yes |
| 25 October 1951 | UK General Election 25 Oct 1951 | Hertford | UK Parliamentary general election | Conservative Party | 30,519 | 56.3% | 1st | Yes |
| 23 February 1950 | UK General Election 23 Feb 1950 | Hertford | UK Parliamentary general election | Conservative Party | 25,074 | 45.9% | 1st | Yes |
| 5 July 1945 | UK General Election 05 Jul 1945 | Hertford | UK Parliamentary general election | Conservative Party | 19,877 | 43.4% | 1st | Yes |