| Name | Role | Place | Source | |
|---|---|---|---|---|
| Ferdinant Frederik Frericks | Mention | 1903 | Idaarderadeel | Notarial records |
| Franz Theodor Frederik Frericks | Registered | 1859 | Amsterdam | Population register |
| Frederik Fredericks Frericks | Child | 1817 | Termunterzijl | Civil registration births |
| Frederik Frericks | Father | 1833 | Lent | Civil registration births |
| Frederik Frericks | Father | 1854 | S-Heerenberg | Civil registration births |
| Frederik Klaas Frericks | Registered | Zutphen | Militia records |
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