| Name | Yvonne GRUL |
| Birth | 23 Feb 1959, Bega, NSW, Australia |
| Father | Friedrich GRUL (1928-) |
| Mother | Gretha JANSEN (1934-2002) |
| 1 | Hans Rolf van der GEER |
| Birth | 22 Mar 1956, Apeldoorn, Gelderland, Nederland |
| Occupation | Opticiën |
| Father | Cornelius Pieter van der GEER (1906-1980) |
| Mother | Ruth GERBIG (1910-) |
| Marriage | 23 Nov 1978, Apeldoorn, Gelderland, Nederland |
| Children | Ramon (1980-) |
| Tamara (1982-) | |
| Savina (1985-) |