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