The proposed relationship of Mary Ann BARNETT as the mother of Mary Marriner BRIGHT and Barnwell BRIGHT is supported by DNA evidence indicating shared ancestry within the family lines.

Specifically, DNA evidence confirms a 3rd cousin, once removed relationship between JA (a descendant of the Mary Marriner BRIGHT ancestral line) and JEC (a descendant of the Barnwell BRIGHT ancestral line) with a shared segment of 97.38 cM across 6 HIR segments.

This match is consistent with their placement within these shared ancestral branches.