| Name | Role | Place | Source | |
|---|---|---|---|---|
| Christiaan F. Kummer | Registered | Apeldoorn | Population register | |
| F. Kummer | Registered | 1925 | Amsterdam | Family cards |
| F. Kummer | Travelers | 1950 | Rotterdam | Passenger registers |
| F. Kummer | Registered | Amsterdam | Workforce registration | |
| F. Kummer | Travelers | 1959 | Rotterdam | Passenger registers |
| George F. Kummer | Registered | 1915 | Amsterdam | Workforce registration |
The term F. Kummer appears in user-added comments on documents 1
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