| Klappan, Agnes Pauline | Otte | 1894 | Bremen |
| Klappan, Anna Margarethe | Otte | 1887 | Bremen |
| Klappan, Carl Friedrich | Otte | 1888 | Bremen |
| Klappan, Hubert Emanuel | Otte | 1892 | Bremen |
| Klappan, Johann Wilh. | Otte | 1899 | Bremen |
| Klappan, Lieselotte | Klappan | 1911 | Bremen 1 |
| Klappan, Marie Agnes | Otte | 1890 | Bremen |
| Klappan, Pauline Louise | Otte | 1895 | Bremen |
| Klappan, Rosa | Klappan | 1910 | Bremen 1 |
| Klappan, Rosine Charl. | Otten | 1898 | Bremen |