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Male  Gijsbert Martens

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Female  Petronella Helwegen

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Female  Maria Catharina Hubertina Martens

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1879--
1880--
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Birth -- about 1884 Venlo
Civil Marriage -- 20 July 1903 ‏(Age 19)‏ Venlo Theodor Hubert Pierre Maassen
Death -- 16 January 1955 ‏(Age 71)‏ Venlo