| Name | Gretha JANSEN |
| Birth | 6 Mar 1934, Apeldoorn, Gelderland, Nederland |
| Death | 16 Dec 2002, Kariong, NSW, Australia |
| Occupation | Verpleegster |
| Father | Egbert JANSEN (1904-1981) |
| Mother | Lena Elfriede BLEICKER (1913-2001) |
| 1 | Friedrich GRUL |
| Birth | 26 Nov 1928, Nijmegen, Gelderland, Nederland |
| Occupation | Kleermaker |
| Father | Jan Willem GRUL (1899-1962) |
| Mother | Catharina Magdalena STÄCKER (1899-1994) |
| Marriage | 20 Nov 1954, Petersham, N.S.W., Australia |
| Children | Elly Catharina (1955-) |
| Alice (1956-) | |
| Jane (1957-) | |
| Yvonne (1959-) | |
| David John (1960-) | |
| Judith Ann (1963-) |