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In recent years, advances in technology has allowed our testing company to develop a test called the Big-Y, offering more detailed insights than ever before. The Big-Y test pinpoints the most detailed Y-DNA haplogroup available, making it easier to uncover the roots of your father’s lineage with greater precision.
Briefly, the Big-Y uses a different type of Y-DNA than we used for testing in the past. We use SNP’s instead of STR’s. For our purposes, we will leave it at that. SNP’s are mutations on the Y-Chromosome. These mutations are rare and harmless. However, once one occurs, it is passed on down to all future generations of male Davenports. So, over a period of say a thousand years, one ‘straight” line of a Davenport branch might see maybe 2 to 5 mutations. In other words, they accumulate. It is these mutations and the sequence that they occur that allows to generate our “group time tree” below.
The chart below illustrates our current progress. Please note, it is a draft and still a long way from being final. The hexagon boxes represent known mutations at specific Y-DNA SNP locations. The top number in each box indicates the name of the SNP, while the number below reflects the estimated year when the mutation occurred. For example, in the top left corner, the SNP BY33642 is shown to have arisen in a male born around the year 1239 CE.
From this SNP, four descending paths or branches extend, representing at least four different lines of descendants. Moving along the third path, you’ll see the SNP S21913, which emerged approximately in the year 1328. All Davenports suspected to descend from the Woodford branch carry this S21913 mutation. As more Davenports are tested and more mutations are identified, we will be able to focus on more recent and current Davenport branches.
Note: The above chart is in the very early stages of development. A draft. As more results come in, more SNP’s will be added, the SNP may vary slightly, and the individual list as the source of the SNP may change.
What if your Y-DNA doesn’t match the main Cheshire Davenport line? Most English Davenports do. Most American Davenports don’t! However, that doesn’t necessarily mean there is no connection. There are four American lines that match the parent Cheshire line, and there are four other American Davenport lines whose Y-DNA differs from the main line, yet they still match an English participant who, on paper, is linked to the broader family.
This variation could be the result of a “paternal event”—an occurrence where, at some point in the lineage, the biological father was not the one traditionally recorded. Such events might include undocumented adoptions, raising an unrelated child as a Davenport, affairs, or other unforeseen circumstances. While these situations can be complex, they are a natural part of family history. If the event occurred several generations ago, you may still find matches as our database continues to grow.
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Important information for Davenports of English descent.
We need you! If you believe you are descended from the Cheshire area Davenports and can trace your Davenport ancestry back several generations, contact us. The list below shows some of our current needs. If you can connect directly with any of the branches listed below you may be eligible for a heavily discounted or even free test. Please reach out to us — your contribution could help unlock important pieces of the Davenport family history!
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Important information for Davenports of English descent.
We need you! If you believe you are descended from the Cheshire area Davenports and can trace your Davenport ancestry back several generations, contact us. The list below shows some of our current needs. If you can connect directly with any of the branches listed below you may be eligible for a heavily discounted or even free test. Please reach out to us — your contribution could help unlock important pieces of the Davenport family history!
The very top of our tree is Thomas 1253-1320, he had two sons:
- John of Marton 1286-1360 who had two sons:
A. Ralph 1323-1383
i. Ralph 1323-1383’s who had two sons:
a. John 1401-1474 continues the Marton line
b. Ralph 1401-1447 is head of the Leek line
B. Arthur 1329-1402 is head of the Calveley line
2. Thomas 1300. He has three sons:
(A). Thomas 1323 is head of the Weltrough line
(B). John senior 1325-1350 is head of both the Henbury and Woodford lines.
(i). Thomas 1350-? is head of the Henbury line
(ii). Nicholas 1364-1414 is head of the Woodford line
(C). John junior 1345-? is head of the Bramall line
Within the Woodford line:
Head John Senior
Nicholas 1510-1580 4x great-grandson of John senior went to Lincolnshire
William 1552-1632 married Dorothy Hyde and is known to be the ancestor of the Woodford line and the Bromley-Davenports, their son, John, married Mary Bromley. William’s grandfather was the brother of Nicholas 1510-1580
Current Bromley-Davenports
We need your Y-DNA! The DNA on the Y-chromosome, which only males have, is passed exclusively from father to son and remains virtually unchanged across generations, which allows us to trace paternal lineage.
But DNA testing is meaningless unless we can also attach names to it. Our goal is to test each Davenport with a Big-Y DNA test and to trace their Davenport ancestry participant as far back as possible. With some luck, we can connect these individuals to well-documented English branches that already exist. The aim is to identify Davenports descending from each major—and even minor—branch of the lineage. This includes, but is not limited to, branches such as Woodford, Bramall, Marton, Henbury, Calveley, Weltrough, Chorley, Hinkley, Priors Marston, Lowcross, Wigston, and Leek. We won’t truly understand what a branches Y-DNA looks like until we obtain samples from the descendants of that branch.
Looking ahead, if a Davenport with previously unknown ancestry takes a test and matches one of the established branches, it will indicate a likely connection. This provides a specific branch for him to focus on and investigate further, helping to uncover more of his family history.
For a more detailed explanation of how Big-Y DNA testing works, click here.
If you would like to help advance our knowledge of the Davenport lineage, please contact Bill Davenport at wbdave@aol.com for more information.
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July 27, 2022
January, 2023 marks the 20th anniversary of the Davenport Surname DNA Project. To celebrate, for the remaining months of 2022 and throughout 2023, we will be publishing tidbits and other interesting stuff about the Project that has transpired over the last 20 years, to show how we have grown and learned about we the Davenport family.
Next, a few teasers. We will start with the conversation on Rootsweb.com about the new science of using DNA for geneology and how it might benefit Davenport research and up through the formation of the Davenport Surname DNA Project.
Point out some of the high points or surprises along the way. When a "new" line was discovered.
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