The proposed relationship of David Rosco Van Wagenen as the father of
Mary Nadine Van Wagenen and
Ruth Ann Van Wagenen is supported by DNA evidence indicating shared ancestry within the family lines.
Specifically, DNA evidence confirms a great aunt / uncle relationship between DJR (a descendant of the Ruth Ann Van Wagenen ancestral line) and MRVW (a descendant of the Mary Nadine Van Wagenen ancestral line) with 1341.83 cM of shared DNA across 36 HIR segments.
This match is consistent with their placement within these shared ancestral branches.