| 1949 | 1954 | 1958, 1963, 1968 | 1972 | 1977, 1980 | |
| Third, Brenda | home duties | home duties | home duties | h d | h d |
| Third, Henry James | engineer | engineer | engr | ||
| Subdistrict | Woollahra | Toombul | Clayfield | Landsborough | |
| Address | 45 Ocean avenue, Edgecliff | 25 Upper Lancaster rd, Clayfield | 4 Weemala Cres, Buderim 4556 | ||
| District | Woollahra | Lilley | Fisher | ||
| State | New South Wales | Queensland | |||
Source: Ancestry.com. Australian Electoral Rolls, 1903-1980