Name | Role | Place | Source | |
---|---|---|---|---|
Martinus Johannes Helfensteijn | Registered | 1899 | Leiden | Population register |
Martinus Johannes Helfensteijn | Registered | 1895 | Leiden | Population register |
Martinus Johannes Helfensteijn | Registered | 1899 | Leiden | Population register |
Martinus Johannes Helfensteijn | Registered | 1891 | Leiden | Population register |
Martinus Johannes Helfensteijn | Registered | 1899 | Leiden | Population register |
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