The paternal relationship between William Smith and his son SAS is confirmed by the direct inheritance path of autosomal DNA down to their DNA tested descendant SAS.

The segmental (via DNA segment triangulation) and total DNA shared between SAS and other confirmed descendants of Charles Edward Wilson/Sarah Jane Lee is consistent with the expected ranges for their respective relationships. Since SAS descends from Charles Edward Wilson/Sarah Jane Lee through William Smith and his son SAS, the presence of significant shared DNA between SAS and other known descendants of Charles Edward Wilson/Sarah Jane Lee validates the generational links along this paternal line.

This supports the conclusion that DNA was passed from MRCA couple Charles Edward Wilson/Sarah Jane Lee through William Smith to SAS, and ultimately to SAS, confirming this direct ancestral connection through multiple generations.