The proposed relationship of Peter Williams as the father of
Henry Williams Sr and
James Williams is supported by DNA evidence indicating shared ancestry within the family lines.
Specifically, DNA evidence confirms a 2nd cousin, once removed relationship between SG (a descendant of the Henry Williams Sr ancestral line) and LBW (a descendant of the James Williams ancestral line) with 124.49 cM of shared DNA across 7 HIR segments.
This match is consistent with their placement within these shared ancestral branches.