| Name | Role | Place | Source | |
|---|---|---|---|---|
| Gerhard Johan Herman Beckeringh Geertsema | Registered | Arnemuiden | Population register | |
| Gerhard Johan Herman Beckeringh Geertsema | Registered | Arnemuiden | Population register | |
| Gerhard Johan Herman Beckeringh Geertsema | Registered | Arnemuiden | Population register | |
| Gerhard Johan Herman Geertsema Beckeringh | Child | 1873 | Arnemuiden | Civil registration births |
| Gerhard Johan Herman Geertsema Beckeringh | Registered | 1873 | Amsterdam | Special registers |
| Gerhard Johan Herman Geertsema Beckeringh | Registered | 1873 | Meppel | Population register |
| Gerhard Johan Herman Geertsema Beckeringh | Witness | 1901 | 's-Gravenhage | Civil registration marriages |
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