| Name | Role | Place | Source | |
|---|---|---|---|---|
| Joh. Bulthuis | Man | 1773 | Leeuwarderadeel | DTB Lidmaten |
| Joh. Bulthuis | Registered | Amsterdam | Pension registry | |
| Joh. Bulthuis | Bruidegoms zijde | 1757 | Groningen | Registrations before 1811 |
| Sietske Joh s Bulthuis | Registered | 1828 | Wommels | Population register |
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