Family: Friedrich Gottlieb Helfferich / Juliana Luisa Augusta Knoeckel (F78259)
Hans Philipp Knoeckel (1811-1870) 
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Amalia Zipelius (1812-1899)
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| Karl Robert Knoeckel (1849- ) |
| Friedrich Gottlieb Helfferich (1845-1845) |
| Juliana Luisa Augusta Knoeckel (1847-1924)
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Karl Theodor Helfferich (1872-1924)  |