Looking for possible Jewish Ancestry name Koch in Germany #germany


Looking for any possible Jewish ancestors from Germany, a small amount of Jewish European DNA originally showed up in my Father's test, 1% or less, my dad is 94.  This would go back many generations and I did find the following in one of my searches: Hanß David Koch was born about 1600, in Zweibrücken, Palatinate, Bavaria, Germany as the son of Hanß Koch. He married Margaretha Sebaldt on 28 May 1674, in Happurg, Nürnberger Land, Bavaria, Germany.   If this is accurate, and I am still trying to confirm that he is in my family tree, (it does show up in one family tree) this would be about 13 generations back from me on my grandmother's side of the family. I am wondering about the way it is written and if it is an indicator of Han son of Koch or Han son of David Koch?  
Thank you,

Tom Neyhart
Indiana, USA

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