| 1928 | 1930 | 1931 | 1932, 1934 - 1935 | 1936 | 1937 - 1938 | |
| Mortimer, Thomas Edwin | R O | R O | R O J | R O J | R O J | R O J |
| Mortimer, Edith Ellen OR Edith | HO HO | Rw Dw | Rw Dw | Rw Dw | Rw Dw | Rw Dw |
| Polling District | R | R | R | R | P | P |
| Address | 115 Ashurst Road N12 | Laurel Dene, Friern park N12 | 141 Friern Park N12 | Aylesbury, Manor Drive N20 | 89 Manor Drive N20 | |
| Ward | Friern Barnet | Friern Barnet Central | Friern Barnet North | |||
| Parliamentary Division | Finchley | |||||
Source: Ancestry - London, England, Electoral Registers, 1835-1965