| Name | Role | Place | Source | |
|---|---|---|---|---|
| Adolphus Trekker | Witness | 1898 | Bertem | Civil registration births |
| Adolphus Trekker | Witness | 1901 | Bertem | Civil registration births |
| Adolphus Trekker | Father | 1903 | Bertem | Civil registration births |
| Adolphus Trekker | Witness | 1904 | Bertem | Civil registration births |
| Adolphus Trekker | Witness | 1908 | Bertem | Civil registration marriages |
| Adolphus Trekker | Witness | 1901 | Bertem | Civil registration marriages |
| Adolphus Trekker | Witness | 1902 | Bertem | Civil registration marriages |
| Franciscus Adolphus Trekker | Child | 1870 | Bertem | Civil registration births |
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