| Name | Role | Place | Source | |
|---|---|---|---|---|
| Sieuwke Posthuma Smit | Mother | 1894 | Wonseradeel | Civil registration births |
| Sieuwke Posthuma Smit | Registered | 1871 | Witmarsum | Population register |
| Sieuwke Posthuma Smit | Registered | 1871 | Witmarsum | Population register |
| Sieuwke Posthuma Smit | Registered | 1871 | Witmarsum | Population register |
| Sieuwke Posthuma Smit | Registered | 1871 | Witmarsum | Population register |
| Sieuwke Posthuma Smit | Registered | 1871 | Witmarsum | Population register |
| Sieuwke Posthuma Smit | Registered | 1871 | Witmarsum | Population register |
| Sieuwke Posthuma Smit | Mother | 1926 | Bolsward | Prayer card collection |
| Sieuwke Posthuma Smit | Registered | 1871 | Witmarsum | Population register |
| Sieuwke Posthuma Smit | Registered | 1871 | Witmarsum | Population register |
Find your ancestors and publish your family tree on Genealogy Online via https://www.genealogieonline.nl/en/