| Name | Role | Place | Source | |
|---|---|---|---|---|
| Dirk Willemsz van Leeuwen | Employee | 1746 | Middelburg | Personnel-administration |
| Dirk Willemsz van Leeuwen | Mention | 1715 | Woerden | Notarial records |
| Dirk Willemsz van Leeuwen | Witness | 1753 | Rijnsaterwoude | |
| Dirk Willemsz van Leeuwen | Witness | 1755 | Rijnsaterwoude | |
| Dirk van Leeuwen Willemsz | Relation | Nieuwveen | ||
| Dirk van Leeuwen Willemsz | Witness | 1921 | Nieuwveen |
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