| Name | Role | Place | Source | |
|---|---|---|---|---|
| Helmer Jan Modderman | Father | 1952 | Breda | Civil registration deaths |
| Helmer Jan Modderman | Groom | 1938 | Breda | Civil registration marriages |
| Helmer Jan Modderman | Groom | 1938 | Breda | Civil registration marriages |
| Helmer Jan Modderman | Registered | 1911 | Winschoten | Population register |
| Helmer Jan Modderman | Child | 1911 | Winschoten | Civil registration births |
| Helmer Jan Modderman | Father | 1952 | Breda | Civil registration deaths |
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