| Name | Role | Place | Source | |
|---|---|---|---|---|
| Bouke Posthuma | Debtor | 1929 | Harlingen | Notarial records |
| Bouke Posthuma | Debtor | 1924 | Harlingen | Notarial records |
| Bouke Posthuma | Debtor | 1923 | Harlingen | Notarial records |
| Bouke Posthuma | Conscript | 1889 | Militia records | |
| Bouke Posthuma | Debtor | 1919 | Harlingen | Notarial records |
| Bouke Posthuma | Mention | 1917 | Harlingen | Notarial records |
| Bouke Posthuma | Deceased | 2012 | Bolsward, Harlingen | Prayer card collection |
| Bouke Posthuma Linthorst | Father | 1911 | Leeuwarden | Civil registration births |
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