Familie: Hartmann, Carl Heinrich Wilhelm / Gecius, Louise Auguste Amalie (F21329)
verh. 5 Dez 1876Gecius (Gezius), Ludwig (1808-1856) 
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Röttger, Johanne Louise Christiane (1820-1884)
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Gecius, Auguste Caroline Louise Amalie (1841-1872)  |
| Gecius, Heinrich August Hermann (1844-1883) |
| Gecius, Heinrich August Ludewig (1845-1905) |
| Gecius, Heinrich Christian Gustav (1849- ) |
| Gecius, Heinrich August Wilhelm (1851-1911) |
| Gecius, Heinrich August Eduard (1853- ) |
| Hartmann, Carl Heinrich Wilhelm (1854- ) |
| Gecius, Louise Auguste Amalie (1856- )
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| Hartmann, Eduard Hermann August (1878- ) |
| Hartmann, Heinrich August Louis (1879- ) |
| Hartmann, Johanne Louise Mathilde (1884- ) |
| Hartmann, Gustav August Wilhelm (1885- ) |