J. S. Montgomery Jr.

Ancestors

Son of Seymour Montgomery Jr. and Martha (Wheeler) Montgomery

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Biography

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Sources

• First-hand information. Entered by J. S. Montgomery at registration.
• Paternal relationship is confirmed by an AncestryDNA test match between J. S. Montgomery, Jr and his second cousin once removed JM. Their most-recent common ancestors are Francis Livingston Montgomery and Elvira Seymour, great grandparents of J. S. Montgomery, Jr and 2nd great grandparents of JM. Predicted relationship from AncestryDNA: 2nd-3rd Cousins, based on sharing 74 cM across 4 segments.
• Paternal relationship is confirmed by an AncestryDNA test match between J. S. Montgomery, Jr and his second cousin once removed EJ. Their most-recent common ancestors are Francis Livingston Montgomery and Elvira Seymour, great grandparents of J. S. Montgomery, Jr and 2nd great grandparents of EJ. Predicted relationship from AncestryDNA: 2nd-3rd Cousins, based on sharing 103 cM across 5 segments.
• Paternal relationship is confirmed through Y-chromosome DNA testing. J. S. Montgomery Jr., FTDNA kit #237807, and his 14th cousin twice removed Peter Archdale, FTDNA kit #625403, match at a Genetic Distance of 9 on 111 markers thereby confirming their direct paternal lines back to their MRCA Alexander "Master of Montgomery" b 1428 who married Elizabeth Hepburn. FTDNA indicates that the probability the two share a common ancestor within the last 17 generations is 56.86% and within the last 18 generations is 72.23%. FTDNA indicates their common SNP is J-Z35783 which was formed when it branched off from the ancestor J-Z35794 around 550 CE. The man who is the most recent common ancestor of this line is estimated to have been born around 1350 CE with a 95% confidence level that he was born 1223-1489 CE.
• Paternal relationship is confirmed through Y-chromosome DNA testing. James David Keith Montgomery, FTDNA kit #MK82751, and his 17th cousin once removed J. S. Montgomery, Jr, FTDNA kit #237807, match at a Genetic Distance of 8 on 111 markers thereby confirming their direct paternal lines back to their MRCA Sir John Montgomerie Lord of Ardrossan b 1362 who married Lady Agnes of the Isles. FTDNA indicates a 95% probability their common ancestor was born between 1100 and 1700. Their common genetic branch is J-Z35783 which was formed around 1300 according to FTDNA. Their ancestor born around 1300 is Alexander Montgomery b 1305 in Eaglesham, Renfrewshire, Scotland who married Margaret, daughter of William, first Earl of Douglas. Alexander is the grandfather of James and John's MRCA Sir John Montgomerie Lord of Ardrossan b 1362.