The paternal relationship between Hermann Michael Ferdinand Tesch and his son
August John Tesch is confirmed by the direct inheritance path of autosomal DNA down to their DNA tested descendant KB.
The segmental (via DNA segment triangulation) and total DNA shared between KB and other confirmed descendants of FH is consistent with the expected ranges for their respective relationships. Since KB descends from FH through Hermann Michael Ferdinand Tesch and his son August John Tesch, the presence of significant shared DNA between KB 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 Hermann Michael Ferdinand Tesch to August John Tesch, and ultimately to KB, confirming this direct ancestral connection through multiple generations.