| Name | Role | Place | Source | |
|---|---|---|---|---|
| Hugo Helmut Simons | Registered | 1904 | Amsterdam | Passport applications |
| Hugo Helmut Simons | Registered | 1904 | Amsterdam | Militia records |
| Hugo Helmut Simons | Registered | 1904 | Amsterdam | Personal cards |
| Hugo Helmut Simons | Registered | 1904 | Amsterdam | Pension registry |
| Hugo Helmut Simons | Groom | 1937 | Amsterdam, Keulen-Nippes (Duitsland) | Civil registration marriages |
| Hugo Simons | Tewerkgestelde | 's-Gravenhage, Keulen | Workforce registration |
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