1931 General Election - Thornbury
| Year | 1931 |
| General election | 1931 General Election |
| Constituency | Thornbury |
| Turnout | 79.7% |
Results
| Candidate | Party | Votes |
| Gunston, Derrick Wellesley | Conservative | 23,072 |
| Blizard, George Pearce | Labour | 11,008 |
| Whitehouse, John Howard | Liberal | 7,826 |