Journals of a Time Traveller

I'm certainly not descended from the bonobos in the above photograph (Credit: W. H. Calvin Ape Bonobo San Diego Zoo.  Creative Commons Attribution 4.0).  However, at some point, perhaps around seven million years ago, we do share common ancestry.  That is a link in the inter-connectivity of Life on Earth.  Also an excuse to post a photo of those wonderful beings.

I recently attended a lecture on Total Genealogy, but I was disappointed that the subject was surname study.  I had hoped that it would relate more to my own concept of the term.  A genealogy that doesn't just embrace documentary research of recorded ancestors over the past 500 years or so, but a more general interest in heritage, that overlaps with DNA, genetics, population genetics, anthropology, physical anthropology, archaeology, local history, national and regional history, cultural and social history, prehistory, linguistics, human evolution, and yes, even our shared ancestry with those bonobo cousins.  Everything ancestral, how we came to be how we are, and above all, time travel in our imaginations.  That is what I mean by Total Genealogy.

Researching the written record, following names is great fun.  Why should the fun stop there though?  Where were my ancestors 12,000 years ago?  Actually, DNA and population studies gives my imagination some good answers to that question.  What did my ancestors 500,000 years look like?  How did they live?  If I could time travel, what would I see?

Total genealogy leads you to bridges, the concept of genetic folding, and of bottlenecks.  You start to relate closer to all humans, and see everyone as a distant cousin.  It embraces a love of heritage, of people, and of the Natural World.  It leaves me in awe.

Image above, last year, holding an artifact from the Neolithic Tomb of the Sea Eagles in Orkney.

Today in this post, I am celebrating my Neolithic heritage.  Another ancestral genetics enthusiast pointed out that rather than Anglo-Saxon, for a Brit and North West European, I actually had indications of enhanced Neolithic Farmer ancestry on most ancient DNA calculators (more on that below).  I was actually quite pleased to have that pointed out, and this post explains why I love the idea of being a modern Neolithic Man.

I remember being fascinated by the past as quite a young child.  On holidays across the British isles, I craved nothing more than visits to castles.  At home in Norwich, I'd haunt the local museums.  However, a love of the Neolithic took hold during my twenties. First, a fishing and drinking tour of Ireland with my brother, took me to the Newgrange Passage Grave site in the Boyne Valley.  Awesome impact.  Then several years later, I picked up the broken butt end of a Neolithic polished flint axe head on farmland behind my cottage.

The above photo is an image of another broken Neolithic flint axe head that I recorded during a surface collection survey many years later in Thetford Forest.

This eventually pulled me into a phase of looking for more prehistoric flint, which I later formalised into the Thetford Forest Survey.  During that period, in collaboration with the Forestry Commission, Norfolk Archaeology, and Suffolk Archaeology, I recorded thousands of struck flint and ceramic artifacts - many from the Neolithic.

Above image taken at the Castlerigg Stone Circle in Cumbria in 2006.

Any chance that I got, I'd also visit Neolithic sites across the British Isles - and continue to do so, hence last year I had a cycling tour of many late prehistoric sites in Orkney.  Absolutely love the Neolithic.  Even though an atheist, I have to confess that some of these sites give me a special vibe.  I have half-seriously told neo-pagan friends, that If I had to choose some gods, Then maybe they would be those of the Neolithic.  Something about the remote sites.

Above image - sorry for looking so bloody miserable and awful.  Swinside Stone Circle, Cumbria.

Our New Understanding of the Neolithic of Europe

What I really want to write about here though, is how recent population genetics, over the past ten years, is transforming how we see the Western Eurasian Neolithic.  Archaeologists had long pondered, our relationship to the British Neolithic people, and going further back and in turn - their relationship to the earlier Mesolithic hunter-foragers of the British Isles.

What recent research of both ancient and modern DNA has so far revealed is that after the last Ice Age, hunter-foragers moved up to Britain from Southern Europe.  Meanwhile, new cultures and economies were developing in the Middle East of SW Asia.  Across the Fertile Crescent, that ran up the Levant, East Anatolia, eastwards, then down the fertile valleys of the Tigris and Euphrates river valleys - people started to settle, domesticate wheat, barley, goats, sheep, cattle and pigs.  They started to farm for the very first time.  This was the Neolithic Revolution.  The first fired ceramics - pottery was added to the recipe, along with polished stone tools.  Eventually these populations also absorbed the very first metallurgy, literacy, and town building - falling into the southern half of those river valleys in Mesopotamia.

Image above - Standing Stone at Stillaig, Argyll, Scotland.

From the Levant and Anatolia, both along the Mediterranean, and direct across the Balkans by land, Neolithic culture and farming technology spread westwards and northwards across Europe.  Population genetics now tells us that this WAS carried by people.  It was not just a transfer of culture and artifacts.  DNA from South-West Asia was strongly carried across Europe.  The Neolithic farmers were a people, with roots in the Near East.

What happened to the old European hunter-foragers?  It seems a mixture of displacement and admixture.  As the Neolithic Revolution rolled across Europe, it did pick up some hunter-gatherer DNA.  However, few of the male haplogroups.  By the time that the First Farmers reached the British Isles, they would have had an ancestry mixed between Near East Asian and European hunters.  Without a doubt, brides and perhaps slaves were taken along that long route from Anatolia to Britain.  This pattern perhaps continued when they reached the Irish and British Isles, and confronted some of the last hunter-gatherer populations of North West Europe.

Image above.  Ring of Brodgar, Orkney.

All of this was fine.  The British Isles were settled by Neolithic peoples around 4,100 BC.  I've seen many of their monuments, studied excavation reports of their archaeological sites, and held many of their flint artifacts.  It was a dominant culture here for two thousand years.  Religious systems may have come and go.  They erected so many monuments here that still survive.  Causewayed enclosures, long barrows, cursuses, henges, monoliths, cairns, standing stone circles, timber circles, mounds, Silsbury Hill - and of course, the internationally renown Stone Henge.  However, we now realise that they carried much DNA from South West Asia!

They must have thought that they, their beliefs, and their social systems would last until the end of time.  We currently think that their populations and farming declined towards the end of their period.  There is a little evidence that they may have been subject to plague from Asia.  This might have weakened them for the next invasion and displacement.

Image above of Skara Brae, Orkney Neolithic settlement.

Image above of Mottistone Longstone, Isle of Wight.

The arrival of the Sons of the Steppes - the Beaker

I'll write more about these guys in a later post.  Around 2,100 BC, a new people and culture turned up in the British Isles.  Whereas the Neolithic peoples had largely originated in SW Asia, south of the Caucasus (with some European hunter-gatherer DNA picked up on the way), these new arrivals largely originated to the NORTH of the Caucasus, on the Pontic and Caspian Steppes.  Their Steppe ancestors perfected the domestication of the horse, bronze metallurgy, and wheeled wagons. The founder Steppe population has been identified by archaeologists as the Yamnaya.  They rolled into Eastern and Central Europe, where their arrival appears to have spawned the Corded Ware Culture.  Their descendants in turn appear to have spawned the Bell Beaker Culture in Western Europe.  In turn, the Bell Beaker appears to have developed into the Atlantic Seaboard Celtic Culture of fame and fashion.

The Eurasian Steppe male haplogroups absolutely dominate present day Europe.  However, again, they appear to have absorbed some women with Neolithic and even earlier Hunter-Gatherer populations into their genome.

The Three Way across Europe

Across modern Europe, we are a mixture of three distinct late prehistoric populations or genetic out-layers - from most recent to oldest:

1. Yamnaya or Steppe
2. Neolithic Farmer
3. Western Eurasian Hunter-Gatherer

The above image is from CARTA lecture. 2016. Johannes Krause of the Max Planck Institute.  All Rights Reserved.

As can be seen above, some Neolithic DNA has survived in present day Europe.  It is strongest in Southern Europe.  Yamnaya ancestry is more of an influence in Northern Europe, although, old Hunter-Gatherer survives strong in the Baltic Republics.  The modern population closest to our Neolithic ancestors are the Sardinians.  So close, that when Ötzi, a frozen preserved Neolithic body was discovered in the Alps, his DNA was seen as so similar to present day Sardinians, that some incorrectly suggested that he had travelled to the Alps from Sardinia!

A Sardinian family.  With a mandolin.  Therefore perfect for here! By Roburq (Own work) [CC BY-SA 3.0], via Wikimedia Commons

My Neolithic Admixture

David Wesolowski's K7 Basal-rich test

Basal-rich

The Basal Eurasians are a hypothetical "ghost" population derived from DNA studies.  It is suggested that they splintered from other modern humans 45,000 years ago, presumably outside of Africa, somewhere around the Middle East.  They significantly contributed DNA to the Early Neolithic Farmers of the Fertile Crescent and Anatolia, and consequently, on to all of us modern West Eurasians.  

 David gives the English average as 26.5%.  My result is 28.8%

Global 10 Test

The recent Global 10 test, run by my friend Helgenes50 of the Anthrogenica board, resulted in:

• 55% Baalberge_MN (European Middle Neolithic)

FT-DNA My Ancient Origins

• 47% Farmer (Neolithic)

My Eurasia K9 ASI Oracle:

• 27% Early Neolithic Farmer
  

My Gedrosia K15 Oracle:

• 25% Early European Farmer

My MDLP K16 Modern Admixture

• 31% Neolithic (modeled on genomes of first neolithic farmers of Anatolia)

My MDLP Modern K11 Oracle:

Admix Results (sorted):

Here I map the ancestral events as recorded on my Gramps genealogical database.  These events can be baptisms, marriages, census records, etc.  The larger the dot, the more events for that particular parish.  I have modified images of Southern England from OpenStreetMap.org Copyright attribution-sharealike 2.0 generic.

My Mother's Ancestral Events.

This includes the recorded events for my mother's 134 recorded direct ancestors and siblings.  As you can see, her known ancestry over the past 330 years has been incredibly localised!  All English.  All East Anglian.  Almost entirely in Norfolk - with one line drifting back to nearby Suffolk.  An incredibly dense cluster in East Norfolk, around the River Yare in Broadland.  Sure enough second cousin and third cousin marriages have been detected in her tree.

My Father's Ancestral Events

This includes the recorded events for my late father's 116 recorded direct ancestors and siblings.  A little more travelled over the past 330 years, although I feel that the events record has a bias in research to show this - as indeed, I estimate his known Norfolk ancestry over the past 330 years to amount to at least 70% of his combined heritage.  Nonetheless, some of his lines trace back temporarily to London, then back mainly to Oxfordshire and the Thames Valley.  All South-East English again.

None of this makes my family any more special than any other family anywhere else in the World, with any type of recent heritage and admixture.  Indeed, the English are a particularly admixed population. However, in testing commercial DNA tests for ancestry, I feel that we offer a good reference sample of SE English, and even East Anglian Norfolk.

I'm particularly interested in how these commercial DNA companies are failing to discriminate ancient or population admixture, from recent (350 years) family admixture.  Some populations they are able to detect with some certainty and accuracy.  However, others such as the English, not at all.  They are unable - despite their claims otherwise, to break recent autosomal admixture on lines over the past ten generations, from earlier, sometimes much earlier population admixtures.

I'm looking forward to seeing if the new Living DNA test fares any better, with it's rich British data set.

The above photograph is of my great great grandfather, William Bennett Baxter, born at Gressenhall Workhouse, Norfolk, England, in 1846.

Well, I've finally updated my Gramps genealogical database for the first time for months.  It's grown!  It now includes details for over 1,600 ancestors and family relatives.  I have to admit, a lot of the swell is down to online genealogical research, using Findmypast.co.uk, Ancestry.co.uk, Norfolk FHS, BMD, FamilySearch.org, etc.  I DON'T ever resort to copying off other people's trees, although I do at times, when I'm stuck, check them to see how other's think, as the hints that they should be.  To be honest though, I often don't agree with their conclusions.  

I do use Search.  I do use transcriptions - but whenever the original image is available (as it increasingly is now), I do verify with it.  Quite often, transcribers get it wrong.  I do also enjoy browsing through digitalised images of parish records, looking for siblings and clues.

Two Fathers

With traditional documentary-based genealogical research, we of course cannot prove a biological line.  We can rarely identify NPEs (Non-Parental Events).  All that we can do, is do our very best to track names through family interviews, documents and records.  Wherever possible, we should verify connections, check and record sources, look for correlations.  This isn't however always possible.  The genealogist has to then decide whether they have enough evidence to connect an ancestor.

For quite some time, I was proud that I had recorded all of my ancestors up to and including great great grandparent level.  However, at great great great grandparent level (Generation 6), I had three missing direct ancestors.  All three of them were the unrecorded father's of three great great grandparents, born illegitimate in Norfolk during the 19th Century.  I had 29 out of 32 biological ancestors recorded for Generation 6.

Then recently, I cracked two of them!  At least I have one evidence for their names.  Two of my illegitimate born great great grandparents, William Bennett Baxter, and Harriet Barber, were actually a married couple.  They were both illegitimate, and had both been born in Gressenhall Union Workhouse close to East Dereham in Norfolk.  William was base-born there  to a pauper named Eliza Baxter.  That she gave him the middle name "Bennett", and there had been Bennetts in the area, always made me suspect that his biological father was believed to have belonged to a Bennett Family, but which?

Then some research online, and it was a back to basics research that cracked it.  I was sure that I had seen their 1866 marriage certificate or entry, at nearby Swanton Morley before, probably years ago.  But if I had seen it before, and I now suspect that I hadn't, then I missed the key.  They BOTH named their alleged biological fathers in their marriage register entry!  How could I have not seen this before?

William Bennett Baxter claimed that he was the son of a labourer, by the name of ... William Bennett.  Harriet Baxter (nee Barber), claimed that her father was a labourer by the name of William Barker.  It's only their word, on their marriage entry - to their knowledge, but I've accepted that testimony, and have added ancestors on those lines.  I haven't yet found much about William Bennett. But I did quickly find more on my 4 x great grandfather William Barker.  He was a shoe maker in East Dereham, the son of a master boot maker.  Perhaps his family didn't approve.  Two years later he married an Elizabeth Wales.

My Fan Chart of Direct Ancestry, updated. I now have 234 direct ancestors named.

Other New Ancestors

The majority (but not all) of my newly claimed ancestors have been Norfolk ancestors on my Father's paternal side, balancing things up rather nicely.  Some of the newly discovered branches include a substantial number of new ancestors recorded both in Dereham, Norfolk, and in the nearby village of Swanton Morley.  They were two very ancestral homes in my tree.  I've recently extended the Baxter of Dereham line back safely to the 1760's.  I've also traced more of my great grandmother Faith Brooker's (nee Baxter) tree, including her direct maternal line to a Rachael Bradfield of Dereham.  Her daughter Elizabeth was baptised there in 1745.  In 1767, Elizabeth Bradfield married our 7 x great grandfather Solomon Harris at Swanton Morley.

I've also extended the line going back from my paternal grandmother (Doris Brooker nee Smith).  I've found more of her ancestors in the South Norfolk village of Hedenham, stretching back to a James Goodram, the son of John and Lydia Goodrum.  James was baptised at Hedenham in 1780.

Finally, I've tidied a few dates on my mother's side, and even started to reassess the ancestry of my children's mother.

Here is a count of direct ancestors from a Gramps report:

Generation 1 has 1 individual. (100.00%)

Generation 2 has 2 individuals. (100.00%)

Generation 3 has 4 individuals. (100.00%)

Generation 4 has 8 individuals. (100.00%)

Generation 5 has 16 individuals. (100.00%)

Generation 6 has 31 individuals. (96.88%)

Generation 7 has 55 individuals. (85.94%)

Generation 8 has 53 individuals. (41.41%)

Generation 9 has 44 individuals. (17.97%)

Generation 10 has 16 individuals. (3.52%)

Generation 11 has 6 individuals. (0.59%)

Total ancestors in generations 2 to 11 is 235. (11.68%)

That's enough genealogy for a while!  Living DNA report next.  Sample was activated and returned.

Above photo taken by myself of the Ring of Brodgar, Orkney

I've modified this from a post that I made on a DNA forum, in response to people discussing out-dated origin stories, in response to a thread looking at ancestral composition for the English.  There is so much misinformation out there, and few people actually try to look at the latest evidences.

It starts by looking at the key points of a recent Irish study.

Cassidy, Martiniano, Murphy etal Study of Neolithic and Bronze Age migration to Ireland

http://www.pnas.org/content/113/2/368.full.pdf

https://www.theguardian.com/science/2015/dec/28/origins-of-the-irish-down-to-mass-migration-ancient-dna-confirms

Key points.

• Ancient DNA from earlier Neolithic farmers suggests an origin from the Near East.

• Later DNA from Bronze Age suggests a new population had arrived and dominated, with origins from the Eurasian Steppes, including the present day predominance of Y haplogroup R1b, lactose tolerance, and blue eyes. This displacement event appears to have occurred throughout much of Western Europe. The founder population on the Steppes has been linked to the archaeological population known as the Yamna or Yamnaya.

A background to the Yamna hypothesis to help people understand what the above study supported:

The Yamnaya were a population that existed across the Pontic and Caspian Steppes from what is now Ukraine, to Kazakhistan. They themselves were an admixed population, with ancestry from various different groups of Eurasian hunter-gatherers, and from the ANE (Ancient North Eurasian). They carried a number of successful adaptations, including the use of the wheel, improved selective breeding of horses for both riding and haulage, lactose tolerance, use of horse drawn wheeled carts, and a very successful pastoral based economy revolving around the herding of a number of species of livestock.

They are strongly figured to have carried an Indo-European language into Europe and elsewhere (South and Western Asia). That Indo-European language being the ancestor of the vast majority of modern European languages today. They may have also carried many of the most common haplogroups of modern Europeans, including Y hg R1a, R1b, and some mt hg H types among others.

There is a hypothesis that the earlier peoples of Europe, the Early Neolithic farmers, who had largely descended from early farmers in the Levant / Anatolia, had been suppressed by a number of possible environmental and climatic events. This might have paved the way for such a successful displacement of European populations.

As the descendants of the Yamna swept westwards into Europe during the Copper Age, so they spawned a series of new archaeological cultures including the Corded Ware of Eastern and Central Europe, and the Bell Beaker culture of Western Europe.

The Bell Beaker culture spread from Central Europe to the Western Atlantic Seaboard, and from Portugal up to Scotland. Classic artifacts include archer burials in round barrows, the bell beaker ware pottery, round scrapers, and barbed and tanged arrowheads. It was the dominant culture of Early Bronze Age Europe.

One suggestion is that it spawned the later Iron Age Celtic cultures, including the classic Western Atlantic Seaboard Celtic Culture. This culture may have simply evolved locally and through trade links along that seaboard.

The Irish study above supports the Yamnaya hypothesis. It supports displacement during the Early Bronze Age, and that the present day, fairly homogeneous population of Ireland, largely descends from Copper Age Eurasian Steppe pastoralists.

Okay, so what if we apply that also to the late prehistoric British populations? Scottish and West British today appear to have a close genetic distance to the Irish. How about the lowland SE British? It might be the case, that they had fresh admixture, exchanged with the Continent, and particularly with the expanding Germanic cultures. These events could have occurred even during late prehistory.

Now People of the British Isles (POBI) Study 2015:

http://www.peopleofthebritishisles.org/nl6.pdf

This genetic study looked at the British Isles including Northern Ireland, but excluding the Republic of Ireland. It tested a large sample group of present day British with known local ancestry.

Key points.

• Orkney had the most distinctive population, with a known high percentage of Norse ancestry.

• The Welsh were distinct from the English. However, they were the most diverse group, with a clear division between the North Welsh and South Welsh. Cornwall was also distinctive from English.

• Northern Ireland clusters with Scottish.

• There was no homogeneous shared British “Celtic” population. The Scottish, North Welsh, South Welsh, and Cornish being quite distinct from each other.

• The South-East British (most of the English) were surprisingly homogeneous, although the boundaries of the old Anglo-Saxon kingdoms could still be distinguished.

• The Continental Anglo-Saxon contributiion to present day English people appeared to be circa 10% to 40%. This contradicts Bede's claims of a genocide. The English descend more from earlier British populations than they do from Anglo-Saxon immigrants.

• Although the Norwegian Viking contribution to Orkney was distinctive, the Danish contribution to Eastern England could not be detected. This may be because of the close genetic distance between Danish Viking and some earlier Anglo Saxon settlers makes it impossible to see.

• Although there was no “Celtic Fringe”, the Welsh appear to be closest to the late prehistoric British population.

• Any Iberian contribution appears to be tiny and insignificant.

• There appeared to be a contribution in Southern Britain, particularly in Cornwall, from a population shared today by the North French. This contribution appears to have occurred during late prehistory and is historically unknown.

Okay, so that is suggesting a diversity across the British Isles that extends into Prehistory. A key finding to this thread is that it found the English to be an admixed population, with earlier British ancestry dominating Anglo Saxon ancestry from the Continent.

Finally, I think it is worthwhile bringing up another recent study:

Iron Age and Anglo Saxon Genomes from Eastern England. Schiffels, Haak, etal. 2015.

This qualitative study focused on ancient DNA from a number of Iron Age and Anglo Saxon cemeteries in the Cambridge area of SE England, referenced against modern populations.

Key points.

• The East English derive 38% of their ancestry from Anglo-Saxon immigrants

• The closest genetic distances on the Continent between the Anglo Saxon settlers and present day Europeans was to the Dutch and Danish.

• They found evidence of admixture and intermarrying. Individuals with both Iron Age British, and Anglo Saxon ancestry.

• People of Iron Age British ancestry were adopting and embracing Anglo-Saxon culture and grave goods.

• The richest graves were of local Iron Age British ancestry (with Anglo Saxon cultural artifacts). The poorest graves were recent Anglo-Saxon arrivals.

My conclusion:

• We have to be careful about who we regard as the Celts. A Celtic culture did exist, but it wasn’t necessarily brought to the British Isles and Ireland by an Iron Age people. It may have developed on the Western Atlantic Seaboard from earlier Bronze Age peoples.

• Those Bronze Age peoples, predominantly descended, from Eurasian Steppe Pastoralists, that had swept across Europe, bringing innovations. They are the oldest peoples of Ireland and the British Isles, but they did not form a homogeneous Celtic Fringe. There must be more to it.

• The Anglo-Saxon event in SE Britain was a major and significant migration. However, it was not the genocide of Bede's claims. Hengist and Horsa were clearly mythological origin characters akin to Romulus and Remus.

• The modern day English are an admixed population. They have a foot both in earlier British ancestry, and in Anglo-Saxon / North Sea migration.

Hear a sentence like "immigrants in Eastern England", and many people might think of the recent immigration from countries such as Poland, Lithuania, and Romania.  However, I'm interested in the longer picture, and how that has impacted the genetic genealogy of East Anglians.

I have noticed, that my mother's 23andMe ancestral composition, is more similar to those of some Dutch testers, than most Irish, Scottish, or West British testers.  23andme has reported at least one small segment shared with a Dutch tester.  My mother on Ancestry Composition speculative mode, scored only 36% "British & Irish", followed by 13% "French & German", 4% "Scandinavian", 2% "South European", and 40% unassigned "Broadly NW European".

My first reaction was that the 23andme calculators and references were confused by relatively ancient admixture, specifically Early Medieval Immigration between the 5th and 11th centuries AD.  The Anglo-Saxon and Viking periods.

However, I'm beginning to review how I see the history of East Anglia.  I think that like many people, I've underplayed the contribution not only of earlier unrecorded immigration events, but also of ongoing later immigration from the European Continent, into East Anglia.

A shock historical suggestion, is that during the late 16th Century, almost a third of the population of the City of Norwich, belonged to an immigrant community of Dutch, Flemish, and Walloon protestants, that had recently settled there, as refugees from persecution on the Continent.  I don't know how many of these immigrants, into centres such as Norwich, Ipswich, kings Lynn, and Great Yarmouth, left descendants in East Anglia.  My parent's recorded Norfolk ancestry is very rural - outside of Norwich.  However, how much DNA did these more recent immigrants leave behind in Norfolk, and East Anglia as a whole?

The immigration events of the 5th to 11th centuries AD into East Anglia, were most likely the most significant.  However, I believe it is wrong to see them as the only immigration events.  The POBI Study found DNA evidence of an earlier, perhaps late prehistoric immigration from the Continent.  Caesar claimed that the people that he called the Belgae had recently immigrated to South East Britain, from the area that is now Belgium.

Neither were the Anglo-Saxon, Dane-Law, nor Norman immigration events the last to the region.  It continued as a background, with occasional known events, such as the Strangers from what is now Belgium and the Netherlands, to Norwich.  East Anglia has always had stronger connections to across the North Sea, than some other regions of Britain. Therefore it should be no suprise, that my mother, with her strong recorded East Norfolk ancestry, has an autosomal ancestry composition, that resembles the Dutch, more than the Welsh or Irish.

I visited the Bridewell Alley Museum today, for the first time for many years, and picked up a new book: Strangers.  A History of Norwich's Incomers by Frank Meeres 2012.  It's full of references to the history of immigration into Norwich.  I thought that it might be useful, to harvest some of the continental immigrant surnames mentioned in this book:

Medieval

• Addurge (French)
• Asger (Bruges, Belgium).
• de Norwege (Norway)
• Dutchman
• Glasier (French)
• Hensser  (Dutch)
• Isborne 
• Jevort (French)
• Johnson (Dutch)
• Kempe de Gaunt (Ghent)
• Kenneton (French)
• Mouner  (French)
• Oreng (French)
• Peterson (Dutch)
• Petirson (Dutch)
• Rijsel (Flemish)
• Tiphany (French)

In 1343, a boat capsized at Cantley.  It had passengers from Latvia and Sweden.

The Strangers 1560 - 1600 AD

In 1571, a return of the Strangers, recorded that there were 4,013 Strangers in Norwich.  This included 868 Dutchmen, and 203 Walloon men.

• Bateman
• Clarebote (Winnezele)
• Clapettia
• Clercke (Dutch)
• Baet
• Bake (Ypres)
• Bartingham (Dutch)
• Coene (Ypres)
• Dedecre (Dutch)
• De Linne
• De Mol
• De Turk (Flanders)
• Der Haghe
• Des Passett
• Faber (East Flanders)
• Goddarte
• Gruter (Antwerp)
• Herjtes (Flemish)
• Hodgeson (Dutch)
• Johnson (Dutch)
• Keerlinck (Ypres)
• Lewalle (Walloon)
• Moded (Antwerp)
• Navegeer
• Le Dente
• Poultier (Dieppe)
• Powells (Dutch)
• Steene (Dutch)
• Vamboute (St Jans-Kappel)
• Van Brugen (Dutch)
• Waells (Houtkerke)
• Wervekin (Ypres)

These are just the surnames of some of the Norwich Strangers, mentioned in the above book.  Just how much did they, and others, contribute though, to the genealogy of Norfolk and East Anglia.  Most belonged to aspiring classes of artisans and merchants.  Weavers, printers, hat makers, etc.  How much of their DNA might have seeped into the surrounding countryside?

GEDmatch Kit M786040

 The above map of East Anglia, plots the ancestral events from my Gramps genealogical database, for my mother's ancestry alone.  All 100% of the events in her family history occur in East Anglia, with a significant concentration on the loam soils of East Norfolk, north of the River Yare, and shouldering up to the marshes of the Halvergate Triangle.  It includes events for the immediate families of 127 direct ancestors, stretching back to the 1680's in places.  Events include such things as births, baptisms, marriages, burials, deaths, census records, occupations, residence, etc.

Surnames include: Tovell, Tovil, Tammas, Tovell-Tammis, Lawn, Gorll, Gaul, Rowland, Dawes, Curtis, Key, Goffen, Goffin, Waters, Merrison, Morrison, Smith, Dove, Porter, Springall, Thacker, Daynes, Daines, Quantrill, Wymer, Rix, Hagon, Page, Nichols, Nicholes, Shepherd, Ransby, Briggs, Barker, Rose, Brooks, Larke, Dingle, Annison, Britiff, Symonds, Sales, Jacobs, Yallop, Moll, Hewitt, Osborne, Ginby, Ling, Briting, Hardyman, Hardiment, and Norton.  Surnames are all English or of Anglo-Danish origin.

Recorded religions are: Anglican Church of England, Baptist, Congregationalist (Presbyterian), Methodist, and Weslyan Methodist.  No Roman Catholicism, Islam, or Judaism.

The area has no significant immigration events in recent centuries, however, it has long held connections with the Dutch.  It is not near to the drained Fens (to the West of East Anglia), so would not have attracted any significant immigrant labour.  The City of Norwich has had communities of strangers, including medieval Jews, and more substantially, protestant refugees during the 16th century, from the Netherlands.   French Huguenots followed to Norwich.

The best known immigration to East Anglia, took place during the 4th to 11th centuries AD, from across the North Sea.  The elites of the Anglo-Saxon kingdom, claimed descent from the Angles, from Angeln  in the Schleswig-Holstein region of Northern Germany, that borders Denmark.  The area is rich in Anglo-Danish place-names.  East Anglia fell deep into the Dane-law.

Generation 2 has 2 individuals. (100.00%)

Generation 3 has 4 individuals. (100.00%)

Generation 4 has 8 individuals. (100.00%)

Generation 5 has 15 individuals. (93.75%)

Generation 6 has 30 individuals. (93.75%)

Generation 7 has 28 individuals. (43.75%)

Generation 8 has 26 individuals. (21.88%)

Generation 9 has 10 individuals. (4.69%)

Generation 10 has 4 individuals. (0.78%)

Total direct ancestors in generations 2 to 10 is 127.

The above photograph is of the wedding of my mother's parents, at Limpenhoe, Norfolk, in 1932.  It includes four of my great grandparents, and a great great grandmother.

I like to present my mother's heritage as a good reference for an area of particular interest.  An area that saw substantial early medieval immigration and admixture, from across the North Sea.  23andMe reports our haplogroup as H6a1.  Uploading the raw data to James Lick's mthap analyser, and to WeGene, both give a best match of H6a1a8.

That so much of her recorded ancestry, is so deeply rooted into East Anglia over the past 330 years, and particularly that one part of Norfolk, would suggest that she has strong East Anglian ancestry stretching back at least to the early medieval, and perhaps earlier.  I have recorded marriage between third, and second cousins, within her East Norfolk direct ancestry.