| Cyril Stanley Siviour |
| Cyril Stanley Siviour | |
| B: | 3 Sep 1921 |
| Ardlethan, New South Wales, Australia. | |
| D: | 28 Sep 1992 |
| New South Wales, Australia. | |
| Aubrey Trevor Siviour |
| Aubrey Trevor Siviour | |
| B: | 2 Aug 1925 |
| Ardlethan, New South Wales, Australia | |
| D: | 8 Jan 1953 |
| Ardlethan, New South Wales, Australia | |
|
| Michael John Siviour |
| Michael John Siviour | |
| B: | 1895 |
| Parkes, New South Wales, Australia | |
| D: | 1969 |
| Manly, New South Wales, Australia | |
| Alma Doreen Cooper |
| Alma Doreen Cooper | |
| B: | 1905 |
| M: | 22 Feb 1921 |
| Temora, New South Wales, Australia. | |
| D: | 15 Mar 1997 |
| New South Wales, Australia. | |