Helene Emma Frida Drobbe 1893– | | |
Marie Margarethe Elisabeth Drobbe 1897– | | |
| | | | | | Johann Gottlieb Drobbe 1823–1890 Marie Dorothea Gromm 1810–1893 | | | | Anna Elisabeth Karnal 1800–1876 |
| | | Christian(Christoph) Johann Christian (Christoph) Gromm 1766–1844 Anna Elisabeth Hilschenz – | | | | | | | | George (Girge) Gromm 1705–1763 | | |
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