Família: Wilhelm Rönnau / Olga Hugentobler (F2984)
Johann Ferdinand Wilhelm Rönnau (1853-1914) 
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Magdalena Kautzmann (1858-1941)
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Karoline Rönnau (1881- )  |
| Lydia Rönnau (1897- ) |
| Herman Rönnau (1889-1979) |
| Eugen Hugentobler (1854- ) |
| Marie Michel (1863-1917)
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| Adele Hugentobler (1889- ) |
| João Eugênio Hugentobler (1891-1954) |
| Olga Hugentobler (1885- )
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| Irma Rönnau (1908- ) |
| Frieda Rönnau (1909- ) |