| Name | Role | Place | Source | |
|---|---|---|---|---|
| Jacob Halbe Kool | Father | 1942 | Veendam | Civil registration deaths |
| Jacob Halbe Kool | Father | 1946 | Veendam | Civil registration deaths |
| Jacob Halbe Kool | Groom | 1936 | Veendam | Civil registration marriages |
| Jacob Halbe Kool | Registered | Tiel | Population register | |
| Jacob Halbe Kool | Registered | Tiel | Population register | |
| Jacob Halbe Kool | Child | 1906 | Wildervank | Civil registration births |
| Jacob Halbe Kool | Registered | 1917 | Tiel | Population register |
| Jacob Halbe Kool | Registered | 1917 | Tiel | Population register |
| Jacob Halbe Kool | Registered | Steenwijk, Wildervank | Population register |
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