The proposed relationship of Daniel Casey as the father of Ellen Nellie Casey and Catherine Casey is supported by DNA evidence indicating shared ancestry within the family lines.

Specifically, DNA evidence confirms a distant cousin relationship between KMC (a descendant of the Ellen Nellie Casey ancestral line) and KO (a descendant of the Catherine Casey ancestral line) with a shared segment of 46.93 cM across 3 HIR segments.

This match is consistent with their placement within these shared ancestral branches.

Further support for shared ancestry within Ellen Nellie Casey and Catherine Casey is provided by an additional 1 DNA confirmed relationships among other tested descendants tracing back to these lines.

(*) details visible to users who are logged in and are part of the DNA tested descendants.