| Name | Role | Place | Source | |
|---|---|---|---|---|
| Corstiaen Overdracht van onroerend goed te Helmond door Corstiaen Claessen en Gijsbert Janssen aan Peter Jan Gielens . | Registered | 1677 | Helmond | Schepenakten |
| Gijsbert Jan Claessen | Deceased | 1687 | Rosmalen | Church records burials |
| Jan Gijsbert (Claessen) | Baptized | 1663 | Arnhem | Church records baptisms |
| Jan Gijsbert Claessen | Registered | Eindhoven | Schepenakten |
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