1970 General Election - Gainsborough
| Year | 1970 |
| General election | 1970 General Election |
| Constituency | Gainsborough |
| Turnout | 74.6% |
Results
| Candidate | Party | Votes |
| Kimball, Marcus | Conservative | 22,163 |
| Tracy, Maurice | Labour | 14,454 |
| Blackmore, Roger | Liberal | 7,543 |