| Noel SYDENHAM | Narrabeen, formerly of Concord West | Western Australia | 1999 |
| Noel SYDENHAM | Gladstone | Western Australia | 1993 |
| Ralph SYDENHAM | Tacoma, formerly of Terrigal | Western Australia | 2002 |
| Roy SYDENHAM | Newcastle, formerly of Kempsey | Western Australia | 1972 |
| Thelma SYDENHAM | East Kempsey | Western Australia | 1987 |
| Victor SYDENHAM | Lidcombe and Kinchela Creek, Kempsey | Western Australia | 1991 |
| Emma SYDENHAM | Kinchela Creek | Western Australia | 1986 |
| Freda SYDENHAM | Fairlight | Western Australia | 1995 |
| Harry SYDENHAM | South West Rocks | Western Australia | 1994 |
| Jack SYDENHAM | Umina | Western Australia | 2003 |
| Narelle SYDENHAM | South Kempsey | Western Australia | 1989 |
| Leonard SYDENHAM | at Honiara Hospital, Solomon Islands, born Wagga Wagga | Western Australia | 2000 |
| Nelson SYDENHAM | | Western Australia | 1985 |
| Olive SYDENHAM | Wyoming, formerly of Sylvania | Western Australia | 1996 |
| Shane SYDENHAM | Botany | Western Australia | 1989 |
| Violet SYDENHAM | | Western Australia | 1980 |
| Elsie SYDENHAM | | Western Australia | 1988 |
| Annette SYDENHAM | | Victoria | 2006 |
| Rae SYDENHAM | | Victoria | 2006 |
| Dawn SYDENHAM | | Victoria | 2008 |
| Warren Sydenham | Sydney | | 0 |
| John Sydenham | Melbourne | | 0 |
| Jason SYDENHAM | Sydney | | 0 |
| Joyce SYDENHAM | Adelaide | South Australia | 0 |
| Edith SYDENHAM | Sydney | New South Wales | 0 |
| Edith SYDENHAM | Sydney | New South Wales | 0 |
| Edith SYDENHAM | Sydney | New South Wales | 0 |