The proposed relationship of John Edwin Curran as the father of
James Joseph Tierney Curran,
Edwin Russell Curran MD and
Eunice Eleanor Curran Carmody(Twin) is supported by DNA evidence indicating shared ancestry within the family lines.
Specifically, DNA evidence confirms a 2nd cousin relationship between GSGHH (a descendant of the Edwin Russell Curran MD ancestral line) and PCD (a descendant of the James Joseph Tierney Curran ancestral line) with 179.80 cM of shared DNA across 6 HIR segments.
It also confirms a 2nd cousin relationship between PCD (a descendant of the James Joseph Tierney Curran ancestral line) and SL (a descendant of the Eunice Eleanor Curran Carmody(Twin) ancestral line) with 209.80 cM of shared DNA across 9 HIR segments.
These matches are consistent with their placement within these shared ancestral branches.