| Name | Role | Place | Source | |
|---|---|---|---|---|
| Joseph Louis Gaethofs | Child | 1900 | Liège | Civil registration births |
| Louis Gaethofs | Witness | 1902 | Brussel | Civil registration marriages |
| Louis Gaethofs | Deceased | 2014 | Heusden-Zolder, Koersel | Rouwbrieven |
| Pierre Louis Gaethofs | Father | 1900 | Liège | Civil registration births |
| Pierre Louis Gaethofs | Registered | 1900 | Population register | |
| Pierre Louis Gaethofs | Father | 1905 | Heerlen | Civil registration births |
| Walter Victor Louis Gaethofs | Child | 1918 | Utrecht | Civil registration births |
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