The paternal relationship between John Chapman and his son
James Chapman 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
Robert III Chapman/
Elizabeth Leah Taylor is consistent with the expected ranges for their respective relationships. Since KS descends from Robert III Chapman/Elizabeth Leah Taylor through John Chapman and his son James Chapman, the presence of significant shared DNA between KS and other known descendants of Robert III Chapman/Elizabeth Leah Taylor validates the generational links along this paternal line.
This supports the conclusion that DNA was passed from MRCA couple Robert III Chapman/Elizabeth Leah Taylor through John Chapman to James Chapman, and ultimately to KS, confirming this direct ancestral connection through multiple generations.