Consilience

John Brooker of Long Wittenham, born circa 1720 in Berkshire area? My 6 x great granddaddy. Gemini AI visualised this image based on my own features and on his recorded life.

Why so much hyper-focus on my Y chromosome just recently?  I guess because I have made a few breakthroughs on other lines of the family tree. I had a long conversation with AI about my paternal line and we came to agreement that I had made an error. That had to be put right. After removing those errors, this is where I got back to on my direct paternal line (aka surname line):

  1. My 6x great grandfather was named John Brooker.
  2. My 6x great grandmother was named Mary Gardiner. She was born in 1717 at Hagbourne, Berkshire.
  3. This couple married 1st November 1746 at Oxford College, Oxfordshire. They were both described as residing at Long Wittenham, Berkshire. I have discovered that the reason that they were married at Oxford College was that their parish had been allocated to a vicar living in Oxford College. It was cheaper for them to be married at Oxford, than to call the vicar back to their parish.
  4. Following marriage, John and Mary Brooker proceeded to have at least six children born at Long Wittenham - Mary, Anne, John, Edward, Martha, and a Sarah Brooker. John was a copyhold tenant of St John's College, Oxford, who were one of the two main land holders at Long Wittenham. As a copyholder, John would have cultivated a number of strips in the open-field systems still being used at Long Wittenham. He wasn't a pauper, but neither was he likely to be particularly wealthy.
  5. Before 1746, I have baptism and ancestry for his wife Mary nee Gardiner, but for John, it's the Great Genealogical Dead End.

What were these errors that I deleted for 6 x great grandad John?  I had found numerous John Brookers baptised circa 1720 in the local area. After much deliberation, I settled for the closest village to Long Wittenham, the parish from which his bride had also moved from, I chose a John Brooker baptised at East Hagbourne. But in my heart I knew that there were issues with this choice. For one thing, a lack of correlation in the names of children. Then I became convinced that the John Brooker of Hagbourne, had lived a separate existence from the John Brooker of Long Wittenham. Genealogical crisis!

I immediately recovered from the shock, and started anew with fresh 2026 research. After all, I started out on this quest in 1989, and things have moved on a tad since then. Not only with digitalised, indexed, and online genealogy, but also with genetic genealogy. This is where I shall take this discussion next.

Around 12 years ago, I tested my y-DNA - the DNA that is contained in my Y Chromosome. This can only be passed from biological father to son. Trace it back, and it follows the direct paternal line, all the way back to Y-DNA Adam in Africa. You can use its variants (aka mutations) to tell a story of that one narrow line of descent, way back into prehistory. It does not ALWAYS follow the surname line perfectly, because of illegitimacy as it was previously known, adoption, affairs, and more. People sometimes change name to escape from their past. In the long term, the y-DNA surpasses the origination and adoption of surnames as they occurred during the Medieval.

I've discussed to death the route this genetic evidence tells me that my paternal ancestors must have taken in the past, and will continue to do so:

  1. 28,000 years ago Ice Age hunters of ibex and mouflon in the Zagros mountains of South-West Asia.
  2. 11,000  years ago, hunter-foragers still in the Zagros, or in the Caucasus mountains, who were selectively hunting wild herds, and milling gathered wild seeds in ways that would eventually evolve into the earliest agriculture.
  3. 8,000 years ago my paternal ancestors were aceramic neolithic farmers, herding goats, and sheep. Keeping pigs. Growing emmer and einkorn wheat, barley and more. They may have remained in the area of the Zagros, on its foothills where they founded the ancestry of the Hurrians and Kassites. Or perhaps they had moved immediately southwest, onto the floodplains of early Sumer (Iraq) where they would give birth to a great civilisation?
  4. 4,000 years ago. They would have been in contact with great cities in Mesopotamia, Assyria, Babylonia, the Indus Valley, the Levant.
  5. 3,000 years ago. Perhaps swept westwards to the Levant by the fall of the Mitanni, and the dispersals of the Hurrians.
  6. 600 years ago. Maybe a Genoese or Venetian galley docked at Beirut, Acre, Jaffa or Tripoli and took on my paternal ancestor as crew. My yDNA finally leaves Asia, and heads for Europe.
  7. 600 years ago. A galley docks at Southampton in England, where Genoese and Venetian merchants have a permanent presence, interested in English wool. My last Asian ancestor leaves a son in England.
  8. 400 years ago. Our line has taken the surname Brooker, or is it Chandler? Perhaps a child is born outside of wedlock. He takes his mother's surname. The yDNA is consequently divided among two families in the area of Basingstoke, Kingsclere, Sherfield Upon Loddon, and Newbury across the Hampshire/Berkshire border. Chandlers and Brookers.
  9. 280 years ago. My 6x great grandfather, John Brooker lives in Long Wittenham, Berkshire.

The above is a hypothesis based on those variants on my Y DNA, along with the fact that it survives only in Europe, among two small families who were living only 32 miles apart during the 18th century. Thomas Chandler of Basingstoke, and John Brooker of Long Wittenham. Comparing the DNA, there is a 78% probability that the two families shared the same great grandfather line until circa 1600. Our type of DNA (L-FGC51036) is not found anywhere else in Europe. Our closest Y-DNA cousins are from Iran, and Saudi Arabia. Further back in the variants we have Y-Cousins from Iraq, Lebanon, Pakistan, India, in the Druze ethnicity, in the Parsi ethnicity.

Getting back to the documented record. Our John Brooker. Where did he come from? The DNA does keep pointing south in Berkshire, and to the Hampshire border. A meeting with the Chandlers of Basingstoke. I investigate all of the 'John Brookers' baptised circa 1720 to the south. There can't be many can there? Wrong. I found at least 9 candidates in that part of Berkshire. I have eliminated several from the search, but Berkshire genealogical records are not the best online! I'm usually limited to indexes of transcripts. Transcripts are often wrong. More dead ends.

So I turned to trying to trace back from the Chandlers of Basingstoke hoping that might put me on to the right track for the early Brooker family. I keep hitting more dead ends.

However, here is the thing. Parishes like Chieveley, Newbury, Kingcslere, Sherbourne St John, Sherfield Upon Loddon. I often see entries for baptisms, marriages, and burials for both 'Chandler' and 'Brooker' families. In same villages, registers, sometimes even same pages!

I can smell consilience. Documented trail, and Genetic trail. So close.

On the Trail of our Y Ancestor

Locator map Iran South Khorasan Province

Early examinations of the Chandler / Brooker Southern English L-M20 Y haplogroup samples, seem to be suggesting that they share a common ancestor quite recently, perhaps between 300 and 600 years ago.  That might mean that a Y ancestor carried the haplogroup into England, perhaps between the 13th and 17th centuries AD.

Where did that Y-DNA come from?  It could have been carried directly by one Y ancestor from a homeland, or it could have transported to England gradually over many generations, from a homeland in Western Asia.

An early match has been forwarded by Caspian, forum user at Anthropogenica.  It is a 111 STR marker, from Birjand / Southern Khorasan, in Eastern Iran.

Could this be the home of our Brooker family Y ancestors?  That is to say, if I was to trace my father, back to his father, to his father - and to continue along this route, might I eventually find my ancestors on this paternal line, in Eastern Iran?  It's an early possibility.  More data, more tests, might eventually give me a better answer.

The STR evidence linked on a Google Sheet.


Edit. 25th May 2016

Early analysis by Gareth Henson, informally suggests a tmrca (time since most recent common ancestor) between myself and the guy in Eastern Iran, of circa 3,000 years ago, or if you prefer, 1000 BC. That would mean that we shared a common lineage until around the time of the Later Bronze Age in British terms. Our common  Y ancestor most likely lived nearer to his home in Western Asia than to mine in North West Europe. 

That isn't long ago. It might suggest that our most recent common ancestor lived in Western Asia around about the time of a series of tensions and conflicts  between Greeks and Persians.  On the other hand, Anthropogenica user Anabasis, using the Clan McDonald TMRCA Calculator, suggests a more recent date, around 1,800 to 1,500 years ago.  That in his words puts it into a context of "In that times Roman - Sasanian wars happened along Eastern Anatolia. Greek- Persian wars were 1 millennium earlier.".  However, he warns, that STR data is not a trustworthy indicator of a TMRCA.

What I love though, is that it stirs the imagination.  Whether 1,500 years ago, or 3,000 years ago - I, an East Anglian, had a paternal ancestor somewhere most likely, between Eastern Anatolia, and Afghanistan.

The Chandler-Brooker Y haplogroup L1b (L-M317)

Link to STR data for Southern English L M20 (Brooker / Chandler)

My Family Tree DNA Y111 STR test results are in.  Only yesterday, I predicted that ftDNA kit number 29369 could be of particular interest.  That prediction has now been proven correct.  Here is what I have learned since yesterday.

The 12 marker STR kit belonged to a descendant of a Thomas Chandler, that lived 1728 to 1782 at Basingstoke, Hampshire.  Although only 12 markers - it proved a perfect match for my first 12.  100%.  Family Tree DNA rated it's genetic distance as zero.

Basingstoke, Hampshire by modern road is only 32 miles (51 km) from Long Wittenham, Berkshire (now Oxon), where my surname ancestor, John Brooker lived, at the same time.  Based on the limitation of a 12 marker comparison, FTDNA give 71% confidence to the testers sharing a common Y ancestor within 12 generations, and 91% confidence of us sharing a common Y ancestor within 24 generations.  I'd say that suggests that myself and the present day descendant of Thomas Chandler, shared a common Y ancestral lineage until between circa 1500 and 1700.

So most likely, between the 16th and 17th centuries inclusive, the Y chromosome moved between two surnames, what we call an NPE (non parental event).  Usually either illegitimacy, where the Y-DNA detached from the surname of the biological father, or simply, the biological father of an ancestor, was not the husband of their mother.  This event most probably occurred in England, somewhere in the Hampshire, Berkshire, Oxfordshire area.  Both my Brooker lineage record, and the Chandler record, merge somewhere in that area.

It gets better.  Searches on FT-DNA, ySearch, and an email trail, revealed more Chandler Y cousins with an L haplogroup. All together, I have today found two 12 marker STR tests, that match my first 12 markers perfectly, with a prediction of zero genetic distance.  I have found another 12 marker with  slight difference, and a genetic distance of 1.  I have found a 37 marker test with some differences, but that still gives a genetic distance of 3.  A comparison with the Y37 test result, predicts 78% confidence of sharing a most recent common ancestor with me within 12 generations, and a 99% confidence of us sharing common Y descent within 24 generations.  This correlates quite nicely with the two perfect 12 marker testers.  All four testers are descended on the paternal line from Chandlers in the Basingstoke area.

The Chandlers of Basingstoke

The FT-DNA Chandler Surname Project is very well managed through the Chandler Family Association.  The three Y12 test kits, that hail from a Basingstoke ancestor, and have proven to belong to the exclusive L M20 Y-DNA haplogroup, have been clustered together as Chandler Group 10.  If our surname was Chandler, rather than Brooker, my Y111 results would fit perfectly into this cluster.  This is because we shared a common paternal lineage, until between 500 and 320 years ago.

Origins of the Chandler-Brooker L1b Y haplogroup

That one has still to be answered.  I'll be consulting others, the Y haplogroup L project administrator, and looking forward to my Big Y test, which is scheduled to take place soon.  However, judging by how very few L-M317 Y haplogroup carriers have so far been recorded in the British Isles, or in North West Europe; I'd dare to propose that the common paternal ancestor of both lines, most likely had not been in England for very long.  Perhaps they could for have example, have carried the Y-DNA here as a 16th or 17th century protestant refugee?  Maybe not, they could have equally been a merchant, an artisan, a servant, a mercenary, or have arrived in another capacity - if indeed they did arrive here that recently.  There is no indication in neither the Brooker or Chandler surname of anything but a medieval English origin (unless originally Bruche, or Chandelier?).

If the common ancestor did arrive that late, where did he come from?  What modern population elsewhere most resembles his Y-DNA?  Hopefully, the Big Y test will help to answer that.  Meanwhile my untrained eyes see correlations within many of the STR markers of people that descend from the Pontic Greek community, that once lived in Eastern Anatolia, and around the Black Sea area of Western Asia.  Of course, the Y-DNA might not have been carried to Southern England from such a homeland within one generation.  It could have been?  There is no sign of any West Asian, Balkan, or Caucasus ancestry within my autosomal DNA.  However, even six to eight generations ago - that could be washed out through recombination - leaving only the Y-DNA to tell what would have otherwise remained a lost untold story.  However, it could have moved across via a number of generations.  It will be worth looking out for any evidence of this on results across the Continent.

See also my earlier posts: