| Name | Role | Place | Source | |
|---|---|---|---|---|
| Annemarie Gerda Groen | Registered | 1922 | Haarlem | Population register |
| Gerda Groen | Registered | 1913 | Spijkenisse | Population register |
| Gerda Groen | Registered | 1910 | Hekelingen | Population register |
| Gerda Groen | Registered | 1931 | Amsterdam | Police reports |
| Gerda Groen | Partner | 2006 | Heemskerk | Prayer card collection |
| Gerda van Groen | Registered | 1931 | Amsterdam | Police reports |
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