The paternal relationship between Art Ferkel and his daughter DMF is confirmed by the direct inheritance path of autosomal DNA down to their DNA tested descendant KS.
The segmental (via DNA segment triangulation) and total DNA shared between KS and other confirmed descendants of
Heinrich Ferkel/
Ruth Anna Graham is consistent with the expected ranges for their respective relationships. Since KS descends from Heinrich Ferkel/Ruth Anna Graham through Art Ferkel and his daughter DMF, the presence of significant shared DNA between KS and other known descendants of Heinrich Ferkel/Ruth Anna Graham validates the generational links along this paternal line.
This supports the conclusion that DNA was passed from MRCA couple Heinrich Ferkel/Ruth Anna Graham through Art Ferkel to DMF, and ultimately to KS, confirming this direct ancestral connection through multiple generations.