The maternal relationship between Lillian Lucile Coddington and her daughter Mary Lou McCauley is confirmed by the direct inheritance path of autosomal DNA down to their DNA tested descendant CB.

The segmental (via DNA segment triangulation) and total DNA shared between CB and other confirmed descendants of Nathaniel Samuel House/Hannah Jarvis is consistent with the expected ranges for their respective relationships. Since CB descends from Nathaniel Samuel House/Hannah Jarvis through Lillian Lucile Coddington and her daughter Mary Lou McCauley, the presence of significant shared DNA between CB and other known descendants of Nathaniel Samuel House/Hannah Jarvis validates the generational links along this maternal line.

This supports the conclusion that DNA was passed from MRCA couple Nathaniel Samuel House/Hannah Jarvis through Lillian Lucile Coddington to Mary Lou McCauley, and ultimately to CB, confirming this direct ancestral connection through multiple generations.