| Leendert Franciscus Lantrok | |
| G: | 27 jul 1930 |
| Rotterdam | |
| Barend Floris Lantrok |
| Barend Floris Lantrok | |
| G: | 19 apr 1935 |
| Rotterdam | |
| O: | 6 aug 1940 |
| Rotterdam | |
|
| Cornelia Catharina Hendrika van Bennekum | |
| G: | 7 jan 1912 |
| Rotterdam | |
| Barend Floris Lantrok | |
| H: | 3 mei 1933 |
| Rotterdam | |