| Name | Role | Place | Source | |
|---|---|---|---|---|
| Laurentius Lodewijk Frederiks | Conscript | 1927 | Wormerveer | Militia records |
| Laurentius Lodewijk Frederiks | Registered | Zaanstad | Population register | |
| Laurentius Lodewijk Frederiks | Registered | 1927 | Militia records | |
| Lodewijk Laurentius Frederiks | Father | 1912 | Wormerveer | Civil registration births |
| Lodewijk Laurentius Frederiks | Registered | Zaanstad | Population register | |
| Lodewijk Laurentius Frederiks | Registered | 1900 | Valkenswaard | Population register |
| Lodewijk Laurentius Frederiks | Registered | 1879 | Wormerveer, Oterleek | Population register |
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