| | Martha Amalia Wilhelmina GASTROCK – | | | | Johann Conrad IMKE 1853–1941 Friederike WAGNER 1862–1945 | | | | Johann Wilhelm IMKE 1826–1917 Anna Maria HEEPE 1825–1907 | | |
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| | | Johann Adolph GASTROCK 1871–1939 Anna Elisabeth SIEBERT 1870–1958 | | | | Liborius GASTROCK 1826–1896 Maria Elisabeth SIPPEL 1832–1916 | | |
| | | Johann Bernhardt SIEBERT 1840–1890 Regina Elisabeth SIPPEL 1833– | | |
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