1929 General Election - Poplar South
| Year | 1929 | 
| General election | 1929 General Election | 
| Constituency | Poplar South | 
| Turnout | 63.6% | 
Results
| Candidate | Party | Votes | 
| March, Samuel | Labour | 19,696 | 
| Heathcote-Williams, Harold | Liberal | 7,185 | 
| Gorst, Elliot Marcet | Unionist | 3,532 |