The proposed relationship of Florence O'Brien as the mother of Josephine Margaret Lennox and EML is supported by DNA evidence indicating shared ancestry within the family lines.

Specifically, DNA evidence confirms a 2nd cousin, once removed relationship between KLF (a descendant of the Josephine Margaret Lennox ancestral line) and JT (a descendant of the EML ancestral line) with a shared segment of 148.51 cM across 8 HIR segments.

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

Further support for shared ancestry within Josephine Margaret Lennox and EML is provided by an additional 1 DNA confirmed relationships among other tested descendants tracing back to these lines.

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