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