Katharina was born in 1803. She passed away in 1867.
Sources
Frosch, Theodor. "Familien in Neuhofen 1651-1910", (Gemeinde Neuhofen. 1997; updated pages received via email March 2020), p. 304, family # 1516, Klamm, Johann Martin : Katharina Elisabetha Demmert, date of marriage 20 Jun 1835 Neuhofen.
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