| Klappert, Caroline Christine Mauritia Friederike | Hermanni | Klappert Georg | 1924 |
| Klappert, Maxgeorg Günter Alex Hans | Klappert Paul Alexander Ludwig Wilhelm | 1910 | |
| Klappert, Ottilie Johanne Margarethe | Beyer | Klappert Paul Alexander | 1923 |
| Klappert, Paul Alexander Ludwig Wilhelm | 1960 |