| Name | Role | Place | Source | |
|---|---|---|---|---|
| Jacob Dirk Frederik van Groen | Conscript | 1931 | Nieuwer-Amstel | Militia records |
| Jacob Dirk Frederik van Groen | Registered | 1911 | Amsterdam | Special registers |
| Jacob Dirk Frederik van Groen | Groom | 1941 | Nieuwer-Amstel | Civil registration marriages |
| Jacob Dirk Frederik van Groen | Registered | 1931 | Militia records |
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