1857 General Election - Londonderry City
| Year | 1857 |
| General election | 1857 General Election |
| Constituency | Londonderry City |
| Turnout | Election uncontested |
Results
| Candidate | Party |
| Ferguson, Robert Alexander | Whig |
| Year | 1857 |
| General election | 1857 General Election |
| Constituency | Londonderry City |
| Turnout | Election uncontested |
| Candidate | Party |
| Ferguson, Robert Alexander | Whig |