Willem Gerard Clement Onstenk 1904–1975 Josine Nicolasine Marie Hubertine Poolen 1906–1989 | | |
Clementine Cornelia Elisabeth Anna Onstenk 1907–1908 | | |
| | Anna Maria Leurs 1868–1949 Gerardus Josephus Wilhelmus Onstenk 1869–1938 | | |
| | Johanna Elisabeth Schotmans 1828–1871 Wilhelmus Johannes Leurs 1828–1895 | | |
| | Johanna Cornelia Jansen – |