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unknown  Johann Christian Wilhelm Gropp
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unknown  Johann Friedrich Gropp
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unknown  Johanne Sophie Klaus
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Birth -- 16 May 1790 Ilsenburg, Kreis Wernigerode, Sachsen-Anhalt, DEU
Religious Marriage -- 23 November 1817 ‎(Age 27)‎ Ilsenburg, Kreis Wernigerode, Sachsen-Anhalt, DEU Dorothee Wilhelmine Friederike Voigt