October 1974 General Election - Preston South
| Year | 1974 |
| General election | October 1974 General Election |
| Constituency | Preston South |
| Turnout | 76.4% |
Results
| Candidate | Party | Votes |
| Thorne, Stan | Labour | 18,449 |
| Green, Alan | Conservative | 14,700 |
| Marshall, Ron | Liberal | 5,456 |
| Harrison, E | National Front | 663 |
| Smith, M | Campaign for a More Prosperous Britain | 87 |