How did our family inherit a Y haplogroup L1b?

I've inherited from my father, a yDNA haplogroup of L1b M317.  Not a haplogroup ordinarily even regarded as European.  It's not particularly common anywhere, but of such low concentrations in North-west Europe, that it doesn't even appear on our haplogroup maps or tables.  Closely related L1a is concentrated in India, while L1c is concentrated around Pakistan.  But our sub clade L1b, has it's main concentration in Western Asia, south of the Caucasus.  It has been found for example in higher concentrations, in the Pontic Greek community that lived in Pontus, North East Anatolia, on the coast of the Black Sea.

By Spiridon Ion Cepleanu - Own work Derivative map, background of Uwe Dedering (File:Turkey relief location map.jpg), CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=20601902

I'm currently investigating the yDNA further with STR testing.  Unless the haplogroup was passed into our family at some point, via a non-paternal event, it should follow my surname line, which I've traced back to a John Brooker who fathered children in Oxfordshire during the early 19th Century.  The surname itself is certainly English.  It clusters in a few places in England - particularly in Kent / Sussex, although our family surname appears to have originated with a smaller cluster in the Oxfordshire / Berkshire area of England.  So how did we end up with an East Anatolian Y?

I quite like the below example of a similar, even more bizarre event in another English family, the Revis Family of Yorkshire, that share yDNA more normally associated with people in South-West Africa:

" ... it is surprising to find the haplogroup A1a (M31) in a family of the Yorkshire surname Revis. This haplogroup is close to the root of the human family tree and rare even in Africa. Genealogical detective work established that the Revis males who carried A1a fitted onto two family trees going back to the 18th century in Britain. A paper trail to a common ancestor could not be found, but genetically he can be deduced a few generations earlier. How A1a arrived in Yorkshire remains a mystery. As Turi King and her colleagues point out, it could have come via a round-about route and not carried direct from Africa.22T.E. King et al., Africans in Yorkshire? The deepest-rooting clade of the Y phylogeny within an English genealogy, European Journal of Human Genetics, vol. 15 (2007), pp. 288–293; G. Redmonds, T. King and D. Hey, Surnames, DNA and Family History (2011), p. 201-204. A possible clue is that the surname Revis is derived from Rievaulx.23P.H. Reaney and R.M. Wilson, Oxford Dictionary of English Surnames, 3rd edn., revised (1997). In 1301 a William de Ryvaus was the wealthiest taxpayer in Marton, North Yorkshire, about six miles from Rievaulx, and a man of the same name paid tax in Gisburne (Guisborough) about 12 miles north of Rievaulx, while a William de Ryvauxe was the sole taxpayer for Barnaby, in the parish of Guisbrough.24Yorkshire Lay Subsidy - 30 Ed. I (1301), ed. W. Brown, Yorkshire Archaeological Society Record Series, vol. 21 (1897), pp. 32, 43 bis, 45. Rievaulx was a Cistercian Abbey in medieval times, founded from Clairvaux in France, and part of an Order with houses in Spain and Portugal built on land won from the Moors. No doubt genetic traces were left in Iberia of the Moorish centuries. A1a is not the most likely haplogroup to be among them, but perhaps not completely impossible. Master masons and other useful craftsmen could have been recommended by one monastic house to another in the Order. So we can dimly see one possible route from Africa to Yorkshire."

Copied from Ancestral Journeys

As for how our y-DNA may have arrived in Southern Britain, I can imagine a number of scenarios.  There is the early Neolithic hypothesis, that Y haplogroup L1b may be a remnant survivor of early European populations that had settled Europe before they were largely displaced during the Bronze Age, by DNA from the Eurasian Steppes.  But if that were the case, I'd expect it to be less rare.  L1b is scattered in low frequencies across Italy, and along the South European coast of the Mediterranean.  For that reason, it may be that it arrived here, or gradually made it's way across the Continent via the Roman or later Byzantine Empires, from Pontic Greek communities.  That is one possible route.

L1b homelands with Roman political boundaries circa 50AD

By Cplakidas - Based on Image:Arshakuni Armenia 150-en.svg. Province & client state outlines based on: Atlas of Classical History, Routledge 1985, pp. 160-162; History Map of Europe, Year 1 from Euratlas, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=6431799

Pontic Greek Colonies around the Black Sea

By George Tsiagalakis - Own work - background topographical map from Wikipedia Commons Image:Topographic30deg_N30E30.png, GFDL, https://commons.wikimedia.org/w/index.php?curid=38138202

My Y Haplogroup L-M20 Resource Post


Edit. 03 May 2016

I've listed the origin (and sometimes origin or ethnicity) of all of the L-M317 listed on the Y haplogroup L project at ftDNA.  Including both SNP confirmed, and predicted:

Ten from Turkey (two specified as Armenian)

Five from Georgia

Three from Chechen Republic

Two from Greece (one specified as Pontic Greek)

Two from Portugal

Two from Italy

Two from Armenia (one specified as Turkish)

One from Iraq (Assyrian)

One from Kuwait

One from Azerbaijan (Azeri)

One from Lebanon)

One from Bulgaria

One from Austria

One from USA (surname Ayers)

One from Romania

One from Russia (Tatar)

One from Cyprus (Austrian Tyrolean)

In addition to these M-317's, there is the Pontic Cluster (L-PH8 (FTDNA L-M317) YCAii = 17-21) of 56 individuals, many only low level STR tested to predict L-M20.  Some of them however, are tested down to M317.  They are mainly in Turkey, Georgia, Iraq, and Greece.  One however, was in Germany (surname Stiffler).

Where will our L-M317 fit in?  Which of these will turn out to be my nearest cousins?


The Three Ages of Genealogy

The above image was made from an opportunistic photocopy of a photograph held by a second cousin.  it is a portrait of Samuel William "Fiddler" Curtis.  He was one of my sixteen great great grandparents, and was born at Hassingham, Norfolk in 1852.  He worked as a teamster - an agricultural labourer that drove a team of horses in the fields.

1. The Past - Record Office Genealogy.

This was how I did genealogy almost exclusively twenty two years ago.  It still exists as a method.  It is still the most qualitative, and traditional research method.  It could be represented by a pair of white gloves - the sort that many record offices and archives insist that readers wear, while handling conserved records.  There is of course a cost.  Some parish registers for example, will suffer from handling, regardless of the level of care.  Otherwise I would recommend that all present day genealogists should practice it from time to time - in order to reference to the most original documents, or simply for the experience of handling these wonderful links to our ancestors.  I remember reading some parish records that I knew had been personally kept by my parish clerk ancestors.  I visited county record offices in Norfolk, Berkshire, Oxfordshire, Wiltshire, and Glamorgan.  I visited archives and the GRO in London.  Genealogy meant leaving the house and travelling.

Twenty two years ago, Digital Genealogy was in it's infancy.  The "IGI" was on microfische.  Censuses up to and including 1881 were available on microfilm.  Some parish registers were just starting to appear in the microfilm/fische room, but for many, I had to produce my readers card, don the white gloves, and carry a soft lead pencil.  Good times.  But sometimes frustrating.I had many dead ends.  If an ancestor moved more than a few parishes away, and preceded a census, you had to either spend years looking in so many parishes - or rely on a bit of luck.  You could of course find other researchers with shared interests.  They would advertise these interests in the columns of genealogy magazines, and in printed annual directories.

By the time that my personal interest drifted away from genealogy, things had already changed an awful lot.  Many more records had been photographed onto film or fische - to protect the original records from a growth of interest in family history.  Here in Norfolk, amateur genealogists were encouraged to use the film/fische reading rooms, rather than access the original documents.  Although some negatives were hard to read, it was much faster than ordering and waiting in a reading room by a ticket system.  People were also increasingly using the Internet as a way of sharing.  The IGI moved online.  We were also using database software programs such as Family Tree Maker, and sharing our .gedcom files online.

I then totally moved away from genealogy totally, for perhaps 12 years.

2. The Present - Internet Genealogy

My interest in genealogy and family history returned after that long break way.  What had changed?  What do I think of the current scene?  So many documents have been digitally photographed, transcribed, indexed, then fed onto online databases.  It's incredible.  Within a few months, my family tree has grown and grown.  I've picked up so many dead ends.  The IGI has evolved into FamilySearch.org, an incredible free online resource.  National archives have growing online collections.  There are commercial online subscription based resources galore competing - Ancestry, FindmyPast, MyHeritage, TheGenealogist, GenesReunited, FamilyLink, Genealogy, etc.  FreeBMD grows.  We can not only browse the England & Wales census online, but since I started researching 22 years ago, we now also have 1891, 1901, and 1911.  With a subscription we can even view them from our homes.

It gets much better though.  So much has been transcribed and indexed - then added to databases.  This means that we can database Search for missing ancestors.  This is the greatest advantage to Internet and database transcriptions - this ability to find them, where we might not have looked.  Also to find new details, to flesh out the bones of our ancestors - military records, criminal records, transportations.  In the old days, we would have needed to either visit a number of difficult archives in London, or hire an experienced professional genealogist to do this for us.  This is the sort of stuff that can now be accessed by the amateur from the comfort of the home.  There is a lot that is positive about the Present.

What can be depressing is that the margin for error has not only increased through badly transcribed indexes, but the ease of Internet search, and of copying previous research - duplicating error has greatly increased.  When I uploaded a skeleton direct ancestral tree to MyHeritage, I was plagued by the website, to add other people's work to my tree. However, when I look at their trees, very often, I don't agree with their conclusions.  I see what I believe to be errors.  Wrong generations married up.  Desperate looking links from parents many miles away - that when I investigate them, I can't verify.  I've very quickly learned to distrust other people's online trees.  I'll use them only as suggestions to investigate.

3.  The Future - Genetic Genealogy

The title of this section is a bit of a tease.  I was a bit of a sceptic of genetic genealogy.  Even now, I feel that people wishing to use DNA evidence for extending family trees should in most cases, save their cash.  However, I can see that one day in the future, genetic genealogy could be a serious tool.  What it presently lacks, particularly outside of the USA, is data!  It can only work, when enough people have recorded and shared enough DNA data online.  Even then, for anything else than measuring quite close relationships up to say, second or third cousin, autosome DNA does not offer much to the genealogist.  Most of our DNA is autosome.  Very useful for checking for recent non-paternal events.  Useful for example, for finding close biological relatives.

What I think will be of more use in the future, will be haplogroup DNA.  The Y-DNA and mt-DNA, and then - only when many, many more people, have submitted and recorded their DNA.  Even then, it will not produce a family tree.  It will identify common biological relations between researchers and other submitters.  Y-DNA will increasingly tie to surnames - and also mark the non paternal events where the haplogroup jumps from one surname to another.  FamilyTreeDNA are the forerunners in that field, with their DNA Projects.  Surname and geographic projects link actual family lines to certain haplogroups, clusters of haplogroups, STR markers, SNPs etc.  It's a great idea, but it's in it's infancy.

Imagine a future though, where not only most researchers have registered DNA data, but that of past generations - parents, grandparents, and even ancient DNA from archaeological sites.  This is where genealogy overlaps with anthropology.  Traditional genealogy traces ancestors from recent centuries.  DNA haplogroups show promise for tracing the general movements, admixtures, displacements of ancestors from thousands of years ago.  At the moment, genetic genealogy rarely supports traditional genealogy - rather, it compliments it with very different material.  In the future though, as if we continue to tie more SNPs and STRs to actual family lines, it'll start to mean something more to the historical period.  Actual surnames will start to attach to clusters.  At least that is how I see it.  I'm sure that the shareholders of the DNA testing companies would also like us to see that vision.

Our exotic Y Haplogroup L1b

A Y haplogroup is a genetic marker that is passed down on a paternal line.  From great grandfather, to grandfather, to father, to son, and so on it goes.  The mt-DNA haplogroup on the other hand, is a genetic marker on the maternal line.  Together, they represent only two lines of descent.  The below illustration demonstrates these two markers on our own family pedigree fan chart over recent generations:


What is exciting about these two human haplogroups, is that by recording their mutations, and plotting them both against both the geographical distributions of present-day populations, and of archaeological human remains, we can start to paint a picture of past movements and origins in population genetics across thousands of years.  We can start to see how some of our ancestors moved across the World during prehistory.  Haplogroups offer a personal touch.

My recent 23andme test reported that I have inherited an mt-DNA haplogroup H6a1 from my mother, and a Y haplogroup L2* from my father.  

My brother, sisters, and my sister's children should also share the mt-DNA haplogroup H6a1.  This mt-DNA haplogroup has recently been recognised as originating in Eurasia.  It mutated from earlier haplogroups from Central Asia.  Current thought based on recent evidence (2015) suggests that it was carried into Western Europe during the early Bronze Age, circa 5,000 to 3,500 years ago, by pastoralists that spread out of the Eurasian Steppes north of the Black Sea in the Ukraine and South Russia area.  These Steppe pastoralists have been associated with an archaeological culture known as Yamnaya, and H6a1 has been detected in female human remains there.  Archaeologists suggest that their success was in domesticating strains of horses, that they could ride, in order to manage larger herds and flocks of grazing livestock.  Another success may have been their development of wheeled carts, that could be horse drawn.  Whatever the factors were, they appear to have been so successful, that their descendants spilled out from the Steppes, dominating Bronze Age Europe.  Therefore based on current evidence and thought, it might seem fair to imagine that we have direct maternal ancestors that 5,500 years ago were women in this Eurasian Steppe Culture.  That is the personal touch of the haplogroup.

But what about the Y haplogroup L2* that we inherited from our father, and our paternal line?  My brother and my son should share this Y haplogroup.  I'm making this post to better understand this heritage.

Y Haplogroup L


Distribution Haplogroup L Y-DNA

Distribution of Y haplogroup L today.  Above image by Crates (Own work) [GFDL (http://www.gnu.org/copyleft/fdl.html) or CC BY-SA 4.0-3.0-2.5-2.0-1.0 (http://creativecommons.org/licenses/by-sa/4.0-3.0-2.5-2.0-1.0)], via Wikimedia Commons.

There were a number of surprises from my personal 23andMe DNA test results.  However, that my Y haplogroup is L2* was perhaps the biggest shock.  I take back all reservations that I had about DNA testing for ancestral purposes.

The 23andMe introduction that accompanied my reported Y haplogroup suggested "Haplogroup L is found primarily in India, Pakistan and the Middle East. The L1 branch is especially common in India, while L2 and L3 are more common further north.".  This is not an English haplogroup.  It is not even a European haplogroup.  It is regarded here as South Asian, spreading down from Afghanistan to Sri Lanka, and across from Iran and into Eastern Turkey.  The above map illustrates the distribution of the Y Haplogroup L as we presently know it.  However, the Y haplogroup L has sub groups, that until recently were designated as L1, L2, and L3.  These subgroups were not distributed equally across the above geographic distribution.

"M76 (current L1a1, former L1) is the most common subgroup in India, while M76 and M357 (current L1a2, former L3) have approximately equal weight in Pakistan. M317 (current L1b, former L2) is rare in the Indian subcontinent. Iran seems to have all three major subgroups, while Turkey appears primarily M357. Other papers have found additional markers. For instance, L1b can be divided into two subgroups, M247 and M349. The people who do not belong to L1 have not been studied in academic papers, but only in personal genetic tests. Their ancestry is European, but it is possible that this group is present in the Middle East or Caucasus, where few people have tested". (Marco Cagetti).

My actual 23andme (ISOGG 2009) assigned L2* mutation should, using the latest designations, be referred to as L1b or, L-M317. I am seeing suggestions that L-M317 may have originated as recently as 10,000 years ago, between Levant and the Iranian plain. My haplogroup L-M317 appears to be strongest in clusters across Western Asia, between Iran and Turkey, with reports in Iraq, Armenia, Georgia, Anatolia, the Chechen Republic, and the Russian Federation.  It is not South Asian.  Marco Cagetti suggests that it is at very low frequency in Southern Europe, less than 1%.  However, this table might suggest that there are stronger pockets of Y Haplogroup L in pockets across Italy.  It has been observed in Portugal, Spain, Italy, and along the Mediterranean.  A sub-clade, L-M317 M349, is found in the Levant, but also clusters in in Central Europe including Germany, Austria, the Czech Republic, and Switzerland.  M349 is subsequently believed to have originated in the Levant.

What about in England?  L1b doesn't appear to have been well documented or researched here.  The FTDNA Y Haplogroup L Project has mapped only three L submissions in the UK - including one undisclosed, one M349, and a single L-M317 - this one in the Basingstoke area, not a hundred miles from my surname carriers in South Oxfordshire.

The chances are, that my L1b will pan out to belong to the L1b1a M349 sub-clade.  It could relate the Rhine-Danube cluster recorded in Central Europe at the FTDNA Y Haplogroup L project.

So how did it get here?  Where do the European L1b's come from?   Some researchers suggest that it could actually be in quite old in Europe.  It could have spread westwards out of the Levant with the Neolithic Revolution, carried by the first farmers.  If this is the case, then it may have been severely displaced by the arrival of new waves of haplogroups that arrived in Europe later, during the Early Bronze Age, leaving just a few clusters to survive.  My Y could be a remnant of earlier European farmers, that were largely displaced by the same wave of haplogroups from the Steppes that carried my mt-DNA into Europe.

Alternatively, it may have arrived here any time later - during the Later Neolithic, or as is a popular theory, it could have been spread into Europe from the Pontic Greek clusters around the Black Sea, or from elsewhere, via the Roman Empire.  It may have even spread into Europe during the medieval.  Some people suggest Byzantine movements in Southern Europe as one possible source.  Others claim links between their L1b and Ashkenazi Jews in their ancestry - either known, or suggested by autosome ancestry composition testing.

It has been suggested that I commission a BIG Y test, but I cannot justify that cost. I think that it is worthwhile commissioning a Y STR test, in order to examine and provenance it. Then should future research bring up any new understanding, I'll be able to best place our lineage within it.  I've ordered the FTDNA Y111 test next.

The 23andMe DNA results are in!

The results were uploaded to my 23andMe profile today.  I posted/registered the sample from the UK, nine weeks ago.  The sample traveled to the USA lab via a NL holding depot.  It took six weeks to process the sample and results, from the time of being marked as arriving at the USA lab.  I feel very fortunate, as many 23andMe customers are reporting a seasonal log-jam that is delaying the process.  My results though were comfortably within the proposed time frame.

There were a number of pleasant surprises.  The results were far from boring.  

Genetic Risk Factors

On the health side that we UK customers can presently still enjoy - there was only good news.  Although I have a family history of Alzheimer's that is strong on my father's side, there was no identification of any genes in my DNA, that have so far been associated with increased risk of the illness.  If my father did have these genes, I didn't receive them.  It does not mean that I will never be at risk to the illness, but it gives me some comfort.  Indeed, all of my 23andMe genetic risk factors were good.  There was no bad news.

Traits

An amusing little trait, that IS identified by the DNA analysis, is on Asparagus Metabolite Detection.  When I eat asparagus, my urine smells strongly.  It confirms for me - that the system works!  It also correctly identifies that I have a sweet tooth, that I have blue eyes, etc.

Now to the genetic genealogy goodies.

Ancestry

Y-DNA

The genetic marker that I inherit from my strictly paternal lineage - father's father, father, and so on, going back.  On paper, I've traced this back to a John Brooker, that lived in Oxfordshire, but was born outside of that county, perhaps in nearby Berkshire, circa 1785.  Of course, that is if no-one ever lied in forms over who the father was.

This one was a shocker.  A little background first.  Although my paper ancestry over the past 350 years is overwhelmingly localised in parts of the county of Norfolk, in East Anglia, my paternal-line surname carrier, that should be the donor of my Y chromosome marker, or Y-DNA, can be traced to Oxfordshire, in Wessex.  Out of my eight paper great grandparents, seven were Norfolk born and bred.  However, the exception was my paternal great grandfather.  Therefore I would not expect my Y-DNA to belong to any local Norfolk gene-pool.  It is the least representative lineage for my heritage.  This is why I feel that people can sometimes place too much value on their haplogroups.  I did however, expect it to belong to a common English or British haplogroup such as the Y-DNA R1b group.

I was in for a surprise.  It is exotic L2*.

From initial research including an Internet search, this haplogroup forms only a rare back scatter across Europe.  It appears more commonly across Western Asia and the Sub-Continent, from Turkey to Southern India.  It is most common in Pakistan, where it may originate, circa 30,000 years ago.  It is not a common European Y-DNA haplogroup.  I need to more carefully research this in the near future, but I'm in awe to find that I have an exotic Y-DNA.  It does conjure up images of one of my paternal ancestors being a Syrian archer, or Persian mercenary in the Roman Army, fathering a child, while stationed in Britannia, or perhaps elsewhere in Roman Europe.  But that might be too fanciful.  Anyway, I'm having pheasant curry for dinner tonight.

This genetic marker should be shared with my son, and my brother.  A few of my first cousins will also have it.

mt-DNA

The genetic marker that I inherit from my strictly maternal lineage - mother's mother, mother and so on back.  On paper, I've traced it back to a Mary Page, who was born in 1802, in Norfolk.  I like the maternal line, as it is actually the most biologically secure.  Few forms lie about who the mother is.  I'd expect my mt-DNA to be a haplogroup firmly established in East Anglia.

A nice one to have.  It is H6a1.

This haplogroup belongs to the Helena group.  However, it is not ancient European.  H6 is believed to have mutated from H around 30,000 years ago in Central Asia.

H6a1 has recently been associated with the Yamnaya migration into Western Europe, from the Eurasian Steppes to the north of the Black Sea, some 4,000 to 5,500 years ago.  In Europe itself, it could be associated with a number of Early Bronze Age cultures, the Corded Ware culture.  It has been linked with the R1b Y haplogroup, that dominates Western European countries such as Ireland, France, and the British Isles.  Recent studies have indeed suggested a significant displacement of people in Western Europe, that occurred in late prehistory, with the arrival of pastoralists from Eurasia.  This migration is also associated with the rise of the dominant Indo-European linguistic group of Europe.  If H6a1 does indeed prove to be linked to the Indo-European explosion of the early Bronze Age, I'd be very happy.  I like to imagine one of my maternal ancestors 5,500 years ago, accompanying a band of prehistoric pastoralists, that are heading westwards into Europe with their horses.

This genetic marker will be shared with my mother, my brother, my sisters, and their children.  A few cousins will also share it.

Ancestral Composition

This is an area that I've been trying to understand recently.  It uses computer analysis, to compare my autosome DNA to a number of others in reference populations from around the World, which then composes suggested ancestry in percentages.  This magic attempts to look not at a few genetic markers or haplogroups, but at all of the patterns in my autosomal DNA, to predict likely ancestry on any lineages that survive in my DNA.

Previous to receiving my results, I recently revised and bolstered up my paper genealogy based family tree,  I now have 172 direct ancestors listed, going back to Generation 14 during the 17th Century.  I noted that all, and everyone of my paper recorded ancestors were English.  All of them.  That includes all of my eight grandparents, all of my sixteen great great grandparents, and thirty of my thirty two great great great grandparents.  That is 100% English.

Now, I'm sure that you'd agree, I should be expecting my 23andMe ancestry composition to give 100% English, right? Well no.  They can't presently identify an ethnic group like the English.  Instead, I should expect my results to fall 100% into the British & Irish category.

100% British & Irish?  No, I'll give this one early.  it was 32% British & Irish on speculative mode.  More on this further down.

My paper research before I received my results also revealed just how concentrated, most of my ancestry has been over the past 350 years.  I compiled the below map of East Anglia.   The BLUE marking the places of ancestral events from my family tree on my father's side; and the RED marking the places of ancestral events on my mother's side.  The larger the marker, the more events recorded.

I also made a map based on East Norfolk during the 4th Century AD, before sea levels fell, and drainage changed the coastline.  I then marked out the area of my mother's ancestry on that.

 The point that I was trying to make was that I believe that my ancestry may have been more exposed to the North Sea Immigration waves of the 4th to 11th centuries AD.  More exposed than your average person of British & Irish heritage.  I also suggested that East Anglia, very much a part of the North Sea World, was particularly attractive to Early Medieval migrants from Frisia, Schleswig-Holsten / Angeln, North Saxony, and from Denmark.

On reviewing the 23andMe DNA Ancestry Composition of an admittedly small sample of other users with strong English heritage, I concluded that the average ethnic English person receives the results:

100% European

60% British & Irish

10% French & German

2% Scandinavian

25% unidentified broadly NW European

People of Irish heritage, or even Americans with either Irish or British ancestry, tend to score a higher percentage of British & Irish than do the present day ethnic English.  23andMe has a generous and growing reference population in it's British & Irish database.  However I hypothesised that 1) the 23andMe B&I reference is skewed to the Irish, and away from English.  It is also possible that it is distorted by a case of genetic drift by testing Americans of British origin.  2) that the British & Irish designation may actually be inadvertently looking at DNA that arrived in the British Isles largely previous to the early medieval North Sea migrations.  To the British and Irish genes that have been here since late prehistory.  On the other hand, the French & German, the Scandinavian, and perhaps some of the undesignated Broadly NW European percentages that are usually assigned to the ethnic English, may actually reflect early medieval migration from across the North Sea.  The computer analysis is simply unable to distinguish some of the DNA from that of present day French, Germans, or Scandinavians, because of ancient admixture.

I'm told that this would not be the case, that 23andMe ancestral composition could not detect such deep, ancient admixture.  However, what if I am correct about my own heritage - that I likely have enhanced levels of Anglo-Saxon and perhaps Norse heritage, because of the geographical location of so many of my ancestors?  Should I not expect even lower percentage of the 23andMe British & Irish category, and even higher percentages of other NW Europeans from across the North Sea?  So what was my 23andMe ancestry composition percentages (speculative mode)?

100% European.  Broken down into:

94% NW European.

3% South European.

I'll get to the South European later, but what about this North west European?  Let's break it down into 23andMe's sub categories:

32% British & Irish

27% French & German

7% Scandinavian

29% undistinguished broadly NW European

Oh my goodness.  It correctly fits my prediction.  I have more than double the average percentage of F&G and Scand for English people.  Despite having a paper researched genealogy that is 100% English, 23andMe's ancestry composition based on a generous reference sample size of 1251 sets, gives me 32% British & Irish.

So a predicted, but still incredibly exciting result.  I'm chuffed to bits.  It does in my eyes, blow 23andMe's British & Irish designation out of the water though.  Their reference samples do not appear to match the East English.  Instead, their software misreads some of the English DNA for French & German, or Scandinavian.  I'm suggesting that this is because of ancient admixture, during the 4th to 11th centuries AD, with North Sea immigration.  I invite others to knock my suggestion down.

One more surprise from my Ancestry Composition:  A South European 2.7%.  Broken down into 23andMe's sub categories:

0.5% Iberian

2.4% undistinguished broadly South European

This looks real.  It appears that I have a small percentage of South European heritage.  Most likely from Spain, Portugal, or Basque.  I probably have Iberian ancestry that I have not yet detected using paper genealogy.  Either that, or it's an anomaly, a incorrect interpretation.

Neanderthal Ancestry

Finally, how much Neanderthal DNA do I have?  How much of my DNA was shared by the archaic humans that lived across parts of Eurasia, between 350,000 to 30,000 years ago?  Evidence of early admixture events between Neanderthal and anatomically modern human populations?

An estimated 2.9%.

That's just slightly above the average of 2.7% for modern Europeans.  So I am not more Neanderthal than most others.  Sorry to disappoint.

All in all, very happy that I spent the money.