The paternal relationship between Carl Hafferman and his daughter Ida Haffermann is confirmed by the direct inheritance path of autosomal DNA down to their DNA tested descendant MR.

The segmental (via DNA segment triangulation) and total DNA shared between MR and other confirmed descendants of LH/Friedericke Ludtke is consistent with the expected ranges for their respective relationships. Since MR descends from LH/Friedericke Ludtke through Carl Hafferman and his daughter Ida Haffermann, the presence of significant shared DNA between MR and other known descendants of LH/Friedericke Ludtke validates the generational links along this paternal line.

This supports the conclusion that DNA was passed from MRCA couple LH/Friedericke Ludtke through Carl Hafferman to Ida Haffermann, and ultimately to MR, confirming this direct ancestral connection through multiple generations.