1950 General Election - Poplar
| Year | 1950 |
| General election | 1950 General Election |
| Constituency | Poplar |
| Turnout | 78.4% |
Results
| Candidate | Party | Votes |
| Key, Charles William | Labour | 30,756 |
| Lonsdale, Richard Thomas Henry | Conservative | 6,088 |
| Purkis, Joseph | Liberal | 1,933 |
| Watson, Harry | Communist | 540 |