1966 General Election - Wellingborough
| Year | 1966 |
| General election | 1966 General Election |
| Constituency | Wellingborough |
| Turnout | 86.5% |
Results
| Candidate | Party | Votes |
| Howarth, Harry | Labour | 24,705 |
| Leatham, John | Conservative | 22,472 |
| Year | 1966 |
| General election | 1966 General Election |
| Constituency | Wellingborough |
| Turnout | 86.5% |
| Candidate | Party | Votes |
| Howarth, Harry | Labour | 24,705 |
| Leatham, John | Conservative | 22,472 |