The proposed relationship of Mary KNIGHTON as the mother of William BRIGHT and Edmund BRIGHT is supported by DNA evidence indicating shared ancestry within the family lines.

Specifically, DNA evidence confirms a distant cousin relationship between JA (a descendant of the William BRIGHT ancestral line) and RJG (a descendant of the Edmund BRIGHT ancestral line) with a shared segment of 19.24 cM across 1 HIR segments.

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