| Name | Role | Place | Source | |
|---|---|---|---|---|
| Jan Berend Willem Timersma | Registered | 1900 | Utrecht | Population register |
| Jan Berend Willem Timersma | Registered | 1901 | Utrecht | Population register |
| Jan Berend Willem Timersma | Registered | 1875 | Leeuwarden | Population register |
| Jan Berend Willem Timersma | Child | 1901 | Leeuwarden | Civil registration births |
| Jan Berend Willem Timersma | Registered | 1888 | Leeuwarden | Population register |
| Jan Berend Willem Timersma | Registered | 1901 | Leeuwarden | Population register |
| Jan Ouds Timersma | Relation | 1854 | Niezijl | Civil registration deaths |
| Jan Timersma | Groom | 1855 | Grijpskerk | Civil registration marriages |
| Jan Timersma | Child | 1823 | De Waard | Civil registration births |
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