January 1910 General Election - Harrow
| Year | 1910 |
| General election | January 1910 General Election |
| Constituency | Harrow |
| Turnout | 85.7% |
Results
| Candidate | Party | Votes |
| Mallaby-Deeley, Harry Deeley | Conservative | 16,761 |
| Harris, Percy Alfred | Liberal | 13,575 |
| Year | 1910 |
| General election | January 1910 General Election |
| Constituency | Harrow |
| Turnout | 85.7% |
| Candidate | Party | Votes |
| Mallaby-Deeley, Harry Deeley | Conservative | 16,761 |
| Harris, Percy Alfred | Liberal | 13,575 |