| Name | Role | Place | Source | |
|---|---|---|---|---|
| Helmer Freerks Modderman | Father | 1949 | Groningen | Civil registration deaths |
| Helmer Freerks Modderman | Groom | 1864 | Beerta | Civil registration marriages |
| Helmer Freerks Modderman | Father | 1865 | Beerta | Civil registration births |
| Helmer Freerks Modderman | Father of bride | 1886 | Beerta | Civil registration marriages |
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