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Father: Matthijs Koenen
Born:
Marr: 1860
Died:
Mother: Johanna Lautenslager
Born: 1843, NLD
Died: 1928, NLD
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Father: S Lamminga
Born:
Marr:
Died:
Mother: F Beitschat
Born:
Died: 1902, NLD
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 | August Johan Koenen 
Born: 6 JAN 1862 - Soerabaija, IDN
Marr: -
Died: 21 AUG 1907 - 's-Gravenhage, ZH, NLD
Other Spouses:
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 | Jeltje Lamminga 
Born: -
Died: -
Other Spouses:
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 | 1. J. J. Koenen Born: - Marr: 1915 - Mr J. H. Welcker Died: - |  |
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