| Name | Role | Place | Source | |
|---|---|---|---|---|
| P van Beetz | Laatstelijk gehuwd | 1943 | Sobibor | Dutch Government Gazette |
| P. van Beetz | Registered | 1885 | Amsterdam | Family cards |
| P. van Beetz | Registered | 1882 | Amsterdam | Family cards |
| P. van Beetz | Registered | 1950 | Amsterdam | Police reports |
| P. van Beetz | Registered | 1871 | Amsterdam | Family cards |
| P. van Beetz | Registered | 1909 | Amsterdam | Family cards |
| P. van Beetz | Registered | 's-Gravenhage, Amsterdam | Management file | |
| P. van Beetz | Registered | 's-Gravenhage, Amsterdam | Management file | |
| P. van der Andel Beetz | Mention | Correspondence |
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