| Name | Role | Place | Source | |
|---|---|---|---|---|
| Harm Althuisius | Groom | 1930 | Rotterdam | Civil registration marriages |
| Harm Althuisius | Groom | 1930 | Rotterdam | Civil registration marriages |
| Harm Althuisius | Registered | 1880 | Population register | |
| Harm Althuisius | Groom | 1906 | Amsterdam | Civil registration marriages |
| Harm Althuisius | Registered | 1902 | Amsterdam | Overgenomen delen |
| Harm Althuisius | Child | 1902 | Zwartsluis | Civil registration births |
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