1. | Johann Jacob Koch was born 1698, Ratshausen, Spaichingen, Schwarzwaldkreis, Württemberg; died 17 Sep 1757, Ratshausen, Spaichingen, Schwarzwaldkreis, Württemberg. Johann married Maria Marquard. Maria was born 1698; died 1 Mar 1757, Ratshausen, Spaichingen, Schwarzwaldkreis, Württemberg. [Group Sheet] Children:
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