The proposed relationship of Harriett Spitler as the mother of
Clarence Wilson Herr and
Emmett Leroy Herr is supported by DNA evidence indicating shared ancestry within the family lines.
Specifically, DNA evidence confirms a 3rd cousin relationship between DH (a descendant of the Emmett Leroy Herr ancestral line) and WJW (a descendant of the Clarence Wilson Herr ancestral line) with 101.00 cM of shared DNA across 1 HIR segments.
This match is consistent with their placement within these shared ancestral branches.