The maternal relationship between Margaret Lillian Archer and her son WCB is confirmed by the direct inheritance path of autosomal DNA down to their DNA tested descendant JAW.

The segmental (via DNA segment triangulation) and total DNA shared between JAW and other confirmed descendants of Joshua BIRD/Mary Ann THOMAZIN is consistent with the expected ranges for their respective relationships. Since JAW descends from Joshua BIRD/Mary Ann THOMAZIN through Margaret Lillian Archer and her son WCB, the presence of significant shared DNA between JAW and other known descendants of Joshua BIRD/Mary Ann THOMAZIN validates the generational links along this maternal line.

This supports the conclusion that DNA was passed from MRCA couple Joshua BIRD/Mary Ann THOMAZIN through Margaret Lillian Archer to WCB, and ultimately to JAW, confirming this direct ancestral connection through multiple generations.