| Name | Role | Place | Source | |
|---|---|---|---|---|
| Mathias Jozef Quadflieg | Witness | 1904 | Kerkrade | Civil registration deaths |
| Mathias Jozef Quadflieg | Decorated | 's-Gravenhage | Registration honors | |
| Mathias Jozef Quadflieg | Witness | 1904 | Kerkrade | Civil registration deaths |
| Mathias Jozef Quadflieg | Child | 1916 | Kerkrade | Civil registration births |
| Mathias Jozef Quadflieg | Registered | Utrecht | Militia records | |
| Mathias Jozef Quadflieg | Registered | 1878 | Amersfoort, Cöln | Population register |
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