| Wilhelmus Theodorus Kooper |
| Wilhelmus Theodorus Kooper | |
| G: | 27 jan 1913 |
| Oldenzaal | |
| O: | 13 mei 1940 |
| Rhenen | |
| Johanna Maria Riekert |
| Johanna Maria Riekert | |
| O: | Ja, datum echter onbekend |
|
| Theodorus Kooper |
| Theodorus Kooper | |
| G: | 25 mei 1880 |
| Renkum | |
| O: | 22 nov 1954 |
| Oldenzaal | |
| Wilhelmina Helena Cornelia Wegmann |
| Wilhelmina Helena Cornelia Wegmann | |
| G: | 4 jul 1879 |
| Duisburg (D) | |
| O: | 10 jan 1952 |
| Oldenzaal | |