| Name | Role | Place | Source | |
|---|---|---|---|---|
| Matthias Classen | Witness | 1933 | Kerkrade | Civil registration deaths |
| Matthias Classen | Father | 1933 | Kerkrade | Civil registration deaths |
| Matthias Classen | Witness | 1933 | Kerkrade | Civil registration deaths |
| Matthias Classen | Father | 1933 | Kerkrade | Civil registration deaths |
| Matthias Classen | Father | 1933 | Kerkrade | Civil registration deaths |
| Matthias Classen | Tewerkgestelde | 's-Gravenhage | Workforce registration |
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