Isaak Defehr (27 Apr 1763 - Sep 1857)

The paternal relationship between Isaak Defehr and his daughter Christina Defehr is confirmed by the direct inheritance path of autosomal DNA down to their DNA tested descendant MWF.

The segmental (via DNA segment triangulation) and total DNA shared between MWF and other confirmed descendants of Benjamin Defehr/AB is consistent with the expected ranges for their respective relationships. Since MWF descends from Benjamin Defehr/AB through Isaak Defehr and his daughter Christina Defehr, the presence of significant shared DNA between MWF and other known descendants of Benjamin Defehr/AB validates the generational links along this paternal line.

This supports the conclusion that DNA was passed from MRCA couple Benjamin Defehr/AB through Isaak Defehr to Christina Defehr, and ultimately to MWF, confirming this direct ancestral connection through multiple generations.