| Name | Role | Place | Source | |
|---|---|---|---|---|
| Ruurd Geertsma | Child | 1872 | Opsterland | Civil registration births |
| Ruurd Geertsma | Conscript | 1892 | Militia records | |
| Ruurd Geertsma | Deceased | 1840 | Rottevalle | Civil registration deaths |
| Ruurd Geertsma | Child | 1839 | Achtkarspelen | Civil registration births |
| Ruurd Hendriks Geertsma | Registered | 1872 | Gorredijk | Population register |
| Ruurd Jans Geertsma | Deceased | 1840 | Rottevalle | Death duties files |
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