| François IJska |
| François IJska | |
| G: | 26 okt 1931 |
| De Steeg | |
| O: | 31 jul 2019 |
| Arnhem | |
| Willem Frederik IJska |
| Willem Frederik IJska | |
| G: | 3 aug 1900 |
| Doesburg | |
| O: | 18 feb 1949 |
| De Steeg | |
| Maria Wilhelmina Kaashoek |
| Maria Wilhelmina Kaashoek | |
| G: | ca. 1905 |
| De Steeg | |
| H: | 7 jun 1928 |
| Rheden | |
| O: | Ja, datum echter onbekend |
| Maaike Maria Yska |
| Maaike Maria Yska | |
| G: | 13 sep 1902 |
| Doesburg | |
| O: | 24 mrt 1929 |
| Hummelo en Keppel | |
| Frederika IJska |
| Frederika IJska | |
| G: | 13 sep 1905 |
| Doesburg | |
| O: | Ja, datum echter onbekend |
| Maria Jeanne IJska |
| Maria Jeanne IJska | |
| G: | 8 jun 1909 |
| Doesburg | |
| O: | 6 feb 2004 |
| Amersfoort | |
| Hendrik van Holland |
| Hendrik van Holland | |
| G: | 8 jan 1902 |
| Amersfoort | |
| H: | 29 apr 1943 |
| Doesburg | |
| O: | 2 mrt 1987 |
| Amersfoort | |
|
| Anna Maria Grada Brinkert |
| Anna Maria Grada Brinkert | |
| G: | 23 sep 1872 |
| Doesburg | |
| O: | 19 jul 1960 |
| Arnhem | |
| Douwe Yska |
| Douwe Yska | |
| G: | 25 nov 1871 |
| Gaast | |
| H: | 8 jun 1899 |
| Doesburg | |
| O: | 26 apr 1962 |
| Arnhem | |