The proposed relationship of Mary Ann Eaton as the mother of Sophronia Maria Tompkins, Benjamin Franklin Tompkins, Catharine Jane Tompkins and Cauis Marius Tompkins is supported by DNA evidence indicating shared ancestry within the family lines.

Specifically, DNA evidence confirms a 3rd cousin, once removed relationship between MC (a descendant of the Sophronia Maria Tompkins ancestral line) and MH (a descendant of the Benjamin Franklin Tompkins ancestral line) with a shared segment of 79.93 cM across 4 HIR segments.

It also confirms a distant cousin relationship between MM (a descendant of the Sophronia Maria Tompkins ancestral line) and AS (a descendant of the Catharine Jane Tompkins ancestral line) with a shared segment of 53.08 cM .

It also confirms a 3rd cousin, once removed relationship between MC (a descendant of the Sophronia Maria Tompkins ancestral line) and PR (a descendant of the Cauis Marius Tompkins ancestral line) with a shared segment of 43.34 cM across 4 HIR segments.

It also confirms a distant cousin relationship between KP (a descendant of the Benjamin Franklin Tompkins ancestral line) and AS (a descendant of the Catharine Jane Tompkins ancestral line) with a shared segment of 63.90 cM across 3 HIR segments.

It also confirms a distant cousin relationship between JH (a descendant of the Benjamin Franklin Tompkins ancestral line) and PR (a descendant of the Cauis Marius Tompkins ancestral line) with a shared segment of 9.55 cM across 1 HIR segments.

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

Further support for shared ancestry within Sophronia Maria Tompkins, Benjamin Franklin Tompkins, Catharine Jane Tompkins and Cauis Marius Tompkins is provided by an additional 42 DNA confirmed relationships among other tested descendants tracing back to these lines.

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