The paternal relationship between William George Roberts and his son
Oliver Roberts 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 JJR/D is consistent with the expected ranges for their respective relationships. Since MR descends from JJR/D through William George Roberts and his son Oliver Roberts, the presence of significant shared DNA between MR and other known descendants of JJR/D validates the generational links along this paternal line.
This supports the conclusion that DNA was passed from MRCA couple JJR/D through William George Roberts to Oliver Roberts, and ultimately to MR, confirming this direct ancestral connection through multiple generations.