January 1910 General Election
Horncastle
| Party | Candidate | Votes | Percent | Change | |
|---|---|---|---|---|---|
| Conservative | Heathcote-Drummond-Willoughby, Gilbert | 5,162 | 54.6% | +3.7% | |
| Liberal | Conybeare, Charles Augustus Vansittart | 4,292 | 45.4% | -3.7% | |
| Majority | 870 | 9.2% | +7.4% | Turnout | 9,454 | 90% | 3.4% | Swing | +3.7% |
