The proposed relationship of Mary Chapman as the mother of Isaac Newton Pennington, Martha Frances Pennington, Mina Chapman Pennington and Ruth Elendor Pennington is supported by DNA evidence indicating shared ancestry within the family lines.

Specifically, DNA evidence confirms a 2nd cousin, twice removed relationship between NC (a descendant of the Isaac Newton Pennington ancestral line) and MH (a descendant of the Martha Frances Pennington ancestral line) with a shared segment of 170.40 cM .

It also confirms a distant cousin relationship between JS (a descendant of the Isaac Newton Pennington ancestral line) and BM (a descendant of the Mina Chapman Pennington ancestral line) with a shared segment of 84.80 cM across 3 HIR segments.

It also confirms a 2nd cousin, twice removed relationship between NC (a descendant of the Isaac Newton Pennington ancestral line) and LT (a descendant of the Ruth Elendor Pennington ancestral line) with a shared segment of 141.59 cM across 8 HIR segments.

It also confirms a 3rd cousin, once removed relationship between BM (a descendant of the Mina Chapman Pennington ancestral line) and KD (a descendant of the Martha Frances Pennington ancestral line) with a shared segment of 153.35 cM .

These matches are consistent with their placement within these shared ancestral branches.

Further support for shared ancestry within Isaac Newton Pennington, Martha Frances Pennington, Mina Chapman Pennington and Ruth Elendor Pennington is provided by an additional 51 DNA confirmed relationships among other tested descendants tracing back to these lines.

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