| Name | Role | Place | Source | |
|---|---|---|---|---|
| Adolph Neumann | Travelers | 1926 | Rotterdam | Passenger registers |
| Gustav Adolph Neumann | Father of bride | 1923 | 's-Gravenhage | Civil registration marriages |
| Lodewijk Adolph Wilhelm Georg Neumann | Registered | 1870 | Population register | |
| Lodewijk Adolph Wilhelm Georg Neumann | Registered | 1856 | Gendringen | Population register |
| Ludwig Adolph Georg Wilhelm Neumann | Registered | Amsterdam | Population register | |
| Ludwig Adolph George Willem Neumann | Registered | 1856 | Amsterdam | Overgenomen delen |
| Ludwig Adolph George Willem Neumann | Registered | 1856 | Amsterdam | Population register |
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