McGowan Surname Y-DNA Project - Results

Haplogroup E

According to ISOGG descriptions, this Haplogroup would appear to have risen in Northeast Africa based on the concentration of and variety of E subclades in that area today and may have first arose in the Near or Middle East and was subsequently carried into Africa through a back migration.  E1b1 is by far the lineage of greatest geographical distribution.  E1b1a is an African lineage that probably expanded from northern Africa to sub-Saharan and equatorial Africa with the Bantu agricultural expansion.  E1b1a is the most common lineage among African Americans. 


Haplogroup I1

Y-DNA haplogroup I is a European haplogroup, representing nearly one-fifth of the population.  It is almost non-existent outside of Europe, suggesting that it arose in Europe.  Estimates of the age of haplogroup I suggest that it arose prior to the last Glacial Maximum.  Haplogroup I1-M253 et al has highest frequency in Scandinavia, Iceland, and northwest Europe.  In Britain, haplogroup I1-M253 et al is often used as a marker for “invaders,” Viking or Anglo-Saxon.


Haplogroup I2b is now I2a2

Although some laboratories have not transitioned to the new ISOGG nomenclature for these haplogroups and subclades, the new identification is being embraced.  The kits in this haplogroup are either verified or derived as Y-DNA haplogroup I2a2a1a1 (SNP L369+).  This subclade is part of haplogroup I, but I2a2a-M284 occurs almost exclusively in Britain, so it apparently originated there and has probably been present for thousands of years.  Haplogroup I2a2a1a1 is even further downstream of I2a2a-M284 by testing positive on SNPs L126/S165, L137/S166 as well as a deeper positive test result in SNP L369.  L369 is believed to be indigenous to Scotland since it is found in high percentages of those with Celtic surnames with history in this part of the world. 


All of the kits within this Haplogroup match the M284 sublcade that is generally limited to Britain with a time to most recent ancestor there 4,650 years ago.  Those kits that are listed as haplogroup I2a2a1a1 are believed to be indigenous to Scotland, with the timeframe to most recent ancestor at around 4,500 years ago for the beginning of the L369+ subclade progenitor. 


Kit #139524, #258900, #205775, #200847, #200849, #236963, #119679, #240066, #N37170, #48992

The first nine kits mentioned above are definitely related and have proven they are related through written genealogy and the common ancestor is William Gowin, born about 1732 in place unknown, who was first found in that portion of Lunenburg Co., VA that later became Bedford Co., VA.  Another "cousin" and descendant from this progenitor, through their ancestor John Conner Gowin, tested with the Genebase Labs and was not able to transfer his results to our project site, but matches the results of the other kits.  Based on Y-DNA evidence it is likely that Kit #48992 shares a common ancestor with the other I2a2 kits above within the last 300 years.  We know that the last known ancestor of Kit #48992 lived in the same vicinity of the other families within the last 300 years.  FTDNA has informed this group that it is likely that they had the "Mc" prefix onto their name after the period of surnaming since they match distantly with kit# 157628 (McGowan).  Also, a Y-DNA analysis was performed by Dr. Tyrone Bowes ( in which he determined that the origin of this family was near Ballantrae, Ayr, Scotland.  This study and results can be found on his site.


Haplogroup R1b1

According to ISOGG, R1b is believed to have arisen in southwest Asia and today is most frequently observed in Europe and especially in Western Europe.  Scots Modal R1b1 – this lineage was originally attributed to Colla Uais by Mark MacDonald, Administrator of the Clan Donald USA DNA Project.  Mr. McDonald has since shifted this interpretation due to Clan Colla source of descent through Godfrey MacFergus.


Kit No. 103778, #228786, and #228348

These kits match with the modal for Niall of the Nine Hostages (aka Niall Noigiallach).  As many as 3 million men worldwide might be directly descended from this single Irish warlord who was the High King at Tara from 379 to 405.  The different branches of the Uí Néill dynasty quarrelled incessantly, but agreed upon a common ancestor in Niall, whose persona and biography were embellished by many hands.   Descendants of the kindred of the Dalriadic royal house in Scotland lie within in this group. Fergus, Angus, and Lorne, the sons of Erc, are descended per Irish and Scottish history from Cairbre Riada, king of Irish Dalriada. Cairbre Riada was descended from Conor II High King of Ireland and Sarad, daughter of Conn of the Hundred Battles. Irish history indicates that Cairbre had led his followers from Munster to Antrim. This kindred is traditionally considered to be of Erainn descent. Reverends Archibald and Angus MacDonald appear to have erred in placing Colla Uais in this line of descent.

Participants in this group who have been SNP tested have tested positive for the SNP marker L21/S145.


Kit No. 122079 and Kit No. 130335

These two match and are considered to have shared a common ancestor within a recent (probably within 10 generations) timeframe. 


Kit No. 138564 and Kit No. 156354

Although the spelling of the last name is off by one letter, these two kits match on 12-markers.  Additional markers are needed to prove they are related. 


Kit No. 46543 and Kit No. N18156

These two match 11 out of 12 markers.  They are considered probably related because one surname is McGowen and one surname is McGowan.  Kit No. N18156 will have to upgrade his test to further prove they are related.