| Name | Role | Place | Source | |
|---|---|---|---|---|
| Frederic Guillaume Nonnenberg | Father | 1873 | Liège | Civil registration deaths |
| Frederic Nonnenberg | Witness | 1885 | Sint-Gillis | Civil registration marriages |
| Fréderic Guillaume Nonnenberg | Father | 1852 | Liège | Civil registration births |
| Frédéric Guillaume Nonnenberg | Father | 1850 | Liège | Civil registration births |
| Frédéric Gustave Nonnenberg | Father of bride | 1908 | Sint-Joost-ten-Node | Civil registration marriages |
| Frédéric Gustave Nonnenberg | Child | 1850 | Liège | Civil registration births |
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