| Name | Role | Place | Source | |
|---|---|---|---|---|
| Jean-Hubertus-Mathieu Claessens | Father | 1883 | Stokkem | Civil registration births |
| Mathieu Franciscus Hubertus Claessens | Groom | 1919 | Wijlre | Civil registration marriages |
| Mathieu Hubertus Claessens | Child | 1913 | Oud-Vroenhoven | Civil registration births |
| Mathieu Hubertus Claessens | Groom | 1936 | Maastricht | Civil registration marriages |
| Pierre Hubertus Mathieu Claessens | Widower | 2005 | Geulle | Prayer card collection |
| Pierre Hubertus Mathieu Claessens | Child | 1913 | Berg en Terblijt | Civil registration births |
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