Thomas Hamilton and the Abercorn Hypothesis: Big Y-DNA Reassessment of the Cape Cod Line

Glen Hamilton · November 10, 2026

A Big Y-DNA reassessment of the 2013 hypothesis identifying colonial Thomas Hamilton (husband of Lydia Wing) as Captain Thomas Hamilton of the Abercorn line. Analysis of SNP markers Y6624 and Y14194 indicates a medieval common ancestor rather than a 17th-century connection. Conclusion: The 2013 identification connecting Thomas Hamilton of Cape Cod to Sir George Hamilton of Dunnalong should be treated as unproven and highly unlikely on current genetic evidence. Thomas’s origins remain an open investigation among earlier cadet branches of the Group B Cadzow lineage.

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