The paternal relationship between Gilbert Harlow Street and his daughter BLS is confirmed by the direct inheritance path of autosomal DNA down to their DNA tested descendant DR.

The segmental (via DNA segment triangulation) and total DNA shared between DR and other confirmed descendants of WCS/RP is consistent with the expected ranges for their respective relationships. Since DR descends from WCS/RP through Gilbert Harlow Street and his daughter BLS, the presence of significant shared DNA between DR and other known descendants of WCS/RP validates the generational links along this paternal line.

This supports the conclusion that DNA was passed from MRCA couple WCS/RP through Gilbert Harlow Street to BLS, and ultimately to DR, confirming this direct ancestral connection through multiple generations.