The proposed relationship of Elizabeth Betty Bennett as the mother of Frederick Lawrence Sr and Arthur Lawrence is supported by DNA evidence indicating shared ancestry within the family lines.

Specifically, DNA evidence confirms a distant cousin relationship between PL (a descendant of the Arthur Lawrence ancestral line) and JL (a descendant of the Frederick Lawrence Sr ancestral line) with a shared segment of 39.07 cM across 3 HIR segments.

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