| Name | Role | Place | Source | |
|---|---|---|---|---|
| Helene Croon | Deceased | 1803 | Houthem | Civil registration deaths |
| Helene Sibille Croon | Child | 1801 | Houthem | Civil registration births |
| Hélène Ghislaine Croon | Child | 1903 | Sauvenière | Civil registration births |
| Maria Helene Nicola Croon | Deceased | 1965 | Rotterdam | Civil registration deaths |
| Maria Helene Nicola Croon | Child | 1907 | Groningen | Civil registration births |
| Maria Helene Nicola Croon | Partner | 1966 | Rotterdam | Civil registration deaths |
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