For the surname: TRETHOWAN
| Full Name | Suburb | State | Year |
|---|---|---|---|
| Harold TRETHOWAN | Green Point, formerly of Weethalle and Dunedoo | Western Australia | 1979 |
| Yvonne TRETHOWAN | Mermaid Waters | Western Australia | 1989 |
| Herbert TRETHOWAN | at Sunraysia Hostel Red Cliffs | Victoria | 2004 |
| Lola TRETHOWAN | Western Australia | 1992 | |
| Alexander TRETHOWAN | Moruya | Western Australia | 1999 |
| Kevin TRETHOWAN | Victoria | 2007 | |
| nee TRETHOWAN | 0 | ||
| Jacinta TRETHOWAN | 0 | ||
| nee TRETHOWAN | 0 | ||
| nee TRETHOWAN | 0 |