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Male  Gerardus Koch

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Female  Maria Kallenberg

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Male  Matheus Josephus Koch

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Christening -- 6 June 1795 's-Gravehage
Civil Marriage -- 20 February 1822 ‏(Age 26)‏ 's-Gravenhage Catharina Maria Sophia Westerhof
Death -- 7 April 1865 ‏(Age 69)‏ Amsterdam