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Marriage Certificate of John Cahill and Catherine Hayes , Registration, Government of Ireland, Department of Employment Affairs and Social Protection - The General Register Office, Personal copy in the files of Brian McQuillan
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Marriage Certificate of John Cahill and Catherine Hayes , Registration, Government of Ireland, Department of Employment Affairs and Social Protection - The General Register Office, Personal copy in the files of Brian McQuillan
Paternal relationship is confirmed by an AncestryDNA test match between Brian McQuillan and his third cousins. Their most-recent common ancestors are their great grandparents, John Cahill and Catherine Hayes. Predicted relationship from AncestryDNA: 3rd Cousins, based on sharing 207 cM across 12 segments, and 202 cM across 10 segments; Confidence: Extremely High
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DNA Connections
It may be possible to confirm family relationships with Thomas by comparing test results with other carriers of his Y-chromosome or his mother's mitochondrial DNA.
However, there are no known yDNA or mtDNA test-takers in his direct paternal or maternal line.
It is likely that these autosomal DNA test-takers will share some percentage of DNA with Thomas: