February 1974 General Election - Blackburn
| Year | 1974 |
| General election | February 1974 General Election |
| Constituency | Blackburn |
| Turnout | 78.2% |
Results
| Candidate | Party | Votes |
| Castle, Barbara | Labour | 20,340 |
| McGaw, Ian | Conservative | 14,040 |
| Beetham, Frank | Liberal | 5,891 |
| Read, John | National Front | 1,778 |