| Berlin? | Berlin | Berlin | ||
| 1840 | 1870 | 1900 | ||
| Roggenbuck | __ | Friedrich Erdmann August | __ | Erna Auguste Henriette *1895 |
| Bertha Ernestine Friederike Kosin | | | |||
| | | Konrad Johann Franz 1900-1961 | |||
| | | oo 1930 in Berlin | |||
| | | Käthe Klara Auguste Pollnow *1904 | |||
| | | ||||
| | | Herbert Friedrich Theodor 1897-1954 | |||
| Lübeck |