Familie: Hermann Louis Lachmann / Auguste Selma Petermann (F1597)
verh. 3 Apr 1903Friedrich August Petermann (1847-1915) 
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Auguste Henrietta Zschörnig (1851-1910)
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Anna Martha Petermann (1875- )  |
| Ernst Karl Petermann (1883-1936) |
| Lina Anna Petermann (1884-1949) |
| Friedrich Max Petermann (1888-1972) |
| Arthur Friedrich Petermann (1890-1915) |
| Hermann Louis Lachmann (1876-1947) |
| Auguste Selma Petermann (1873-1919)
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| Hermann Kurt Lachmann (1904-1986) |
| Wilhelm Walter Lachmann (1907-1944) |