1929 General Election - Watford
| Year | 1929 |
| General election | 1929 General Election |
| Constituency | Watford |
| Turnout | 72.4% |
Results
| Candidate | Party | Votes |
| Herbert, Dennis Henry | Unionist | 18,583 |
| Terrell, Edward | Liberal | 12,288 |
| Macdonald, Hermand | Labour | 9,665 |
| Year | 1929 |
| General election | 1929 General Election |
| Constituency | Watford |
| Turnout | 72.4% |
| Candidate | Party | Votes |
| Herbert, Dennis Henry | Unionist | 18,583 |
| Terrell, Edward | Liberal | 12,288 |
| Macdonald, Hermand | Labour | 9,665 |