The maternal relationship between Rebecca BARNARD BARNETT and her son
Joseph MUSSON is confirmed by the direct inheritance path of autosomal DNA down to their DNA tested descendant SW.
The segmental (via DNA segment triangulation) and total DNA shared between SW and other confirmed descendants of
William BARNARD BARNETT/
Mary MARINER is consistent with the expected ranges for their respective relationships. Since SW descends from William BARNARD BARNETT/Mary MARINER through Rebecca BARNARD BARNETT and her son Joseph MUSSON, the presence of significant shared DNA between SW and other known descendants of William BARNARD BARNETT/Mary MARINER validates the generational links along this maternal line.
This supports the conclusion that DNA was passed from MRCA couple William BARNARD BARNETT/Mary MARINER through Rebecca BARNARD BARNETT to Joseph MUSSON, and ultimately to SW, confirming this direct ancestral connection through multiple generations.