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Corson Surname DNA Project Newsletter June 2006

Hello everyone,
I apologize for failing to send out a newsletter last month; I spent most of my time preparing for a French job interview. I'm happy to report that I got the job and will be moving to France within two months. Thanks to the Internet, I'll still be able to coordinate the DNA Project from there. I hope to recruit some French Coursons for the project, too. In the past two months, three participants signed up and two of them received their test results.

Michael

PROJECT STATISTICS
30 participants, 28 test results reported
Separate family lines: 13 (1 set of seven participants, 1 set of four, 2 sets of three, 2 sets of two, 7 unmatched)
Family-line haplogroups: 9 in R1b; 1 each in E3b, I1a, I1b2a, and J2

CCFHA DIVISIONS WITH NEWS

DIVISION I (New England) - 8 participants, 7 results

Three participants from this Division signed up in the past two months. The first (#28) traces his descent from Samuel Corson's (c.1686-1764) youngest son, Ichabod (c.1725-1801). The participant's genetic signature matched Samuel's on 42 of 43 markers, which corroborates his documented male-line ancestry. Participant #28's genetic signature differs at DYS 458 (with a value of 18 instead of 17), which may indicate a marker value we can use to identify descendants of Ichabod. We'll need to have other descendants of Ichabod join the project to be sure. With the participation of Participant #28, the project has tested at least one descendant of each of Samuel Corson's four sons.

The second Division I participant (#29) traces his descent from Moses Corson (c.1744-1802), third son of Samuel's eldest son, Zebulon (1712-1786). The participant's genetic signature matched Samuel's on 42 of 43 markers, corroborating his documented male-line ancestry. Participant #29's genetic signature differs at DYS 446 (with a value of 15 instead of 14), which may indicate a marker value we can use to identify descendants of Moses. With the participation of Participant #29, the project has tested at one descendant of each of Zebulon Corson's four sons (Division I-A).

The third Division I participant (#30) traces his descent from James Collson (c.1750-1825), a younger son of Samuel's second son, Hatevil (1714-1798). His results should arrive in a couple of weeks and will tell us whether he has the same differences in his genetic signature that Participant #12, another descendant of Hatevil, has. If so, it would provide marker values (at markers GATA-A10 and DYS 464) that would identify descendants of Hatevil by genetic signature alone.

The project now has eight participants from Division I, by far the most active Division. You can see how they are related in their common documented descendancy chart on the project website: http://www.geocities.com/misccorson/dna/DivisionI.gif

UPDATED NETWORK DIAGRAM FOR HAPLOGROUP R1b

I recently updated a diagram on the project website that predicts how closely the 19 project participants in haplogroup R1b are related (Divisions I, IV, and VII; Vroom participants; and some individual participants). Based on genetic signatures and estimated rates of marker mutation, a software program called "Network" drew an estimated family tree that shows how participants' families may have descended from their common R1b ancestor. You can see the network diagram here: http://www.geocities.com/misccorson/dna/network.htm

HOW RECENTLY RELATED?

Now that we have ancestral genetic signatures for Divisions I, II, IV, and VII, as well as two candidate signatures for Division III (Corson and Vroom), I used another tool to estimate how long ago the most-recent common male-line ancestor (MRCA) of each pair of families might have lived.

The main finding: none of these Corson/Vroom Divisions appear to have been related in a genealogical timeframe (i.e., since the adoption of surnames). Division I appears most closely related to Division VII, with a MRCA who lived about 900-2800 years ago. Division II and the candidate-Division III Corsons are most closely related to each other, but only as recently as 2900-6400 years ago. Coming from a different haplogroup (I1) than the other Divisions (who come from R1b), these two families are very distantly related to the other Divisions, with a MRCA who lived about 4000-12000 years ago. The candidate-Division III Vrooms, Division IV, and Division VII are most closely related to each other, with MRCAs who lived about 900-3000 years ago. You can read more about this analysis on the project website: http://www.geocities.com/misccorson/dna/interp.htm

CCFHA DIVISIONS WITH NO NEWS

DIVISION II (Sussex Co., NJ) - 4 participants, 3 results - More participants from this Division are welcome; their results could help strengthen the assertion that we know progenitor Jan Corszen's (d. 1703) genetic signature.

DIVISION III (Staten Island, NY) - 6 participants and results - We are still looking for participants from the following lines: male-line descendants of (1) Hendrick Vroom's (1683-1769) brothers Cornelius (b. 1677) or Alfred, and (2) Benjamin Corssen's brothers Jacob (1681-1742) or Christian (1676-aft. 1764). We're also looking for other descendants of William DeCoursey (bef. 1720-1788) to participate. Until then, we won't know if the Corson, Vroom, or DeCoursey genetic signature (if any of them) represents that carried by progenitor Cors Pieterszen (1612-1655).

DIVISION IV (Cape May Co., NJ) - 4 participants and results - Now that we have identified the ancestral genetic signature for this Division, we are searching for genetic matches in Europe that might indicate progenitor Carsten Jansen's (1634-c.1697) region of origin. We welcome other participants from this Division.

DIVISION Va (Dumfriesshire, Scotland) - 1 participant and result - We're looking for another male-line descendant from this family so we can estimate its ancestral genetic signature.

DIVISION VII (Hunterdon Co., NJ) - 2 participants and results - Now that have identified the ancestral genetic signature of progenitor Jacob Corson (c.1755-bef.1822), we're looking for genetic matches that could indicate where Jacob's male-line ancestors came from. Other participants from this Division are welcome.

DIVISION VIII (Colsons not derived from Corsons) - 1 participant and result - The current participant descends from Adam Cols(t)on of Massachusetts, born ca. 1660. We welcome participation by those descended from him or other Colson progenitors.

DIVISIONS VI, IX, and XIII - no participants - We still wish to recruit descendants of Daniel Corson (1763-1849), who moved from Sussex County, NJ to Ontario, Canada. We're also searching for participants with ancestors from European Corson / Corsan / Courson / Curzon / Korson families.

UNCONNECTED - 4 participants and results - Three Corson participants and one Courson participant remain unconnected to other participants in the project.

SUBSIDY FUND

At least $315 remains in the subsidy fund to reimburse all or a portion of the test costs for four participants from particular family lines in Divisions III, X, and XIII. You can see additional details at the project website: http://www.geocities.com/misccorson/dna/subsidyfund.htm

If you have any questions about the project, interpretation of test results, or genetic genealogy in general, please contact me. If you know someone who would like to receive this newsletter, please ask that person to send me an e-mail address to subscribe. You can read back issues of the newsletter at http://www.geocities.com/misccorson/dna/reports.htm

Corson DNA Project website: http://www.geocities.com/misccorson/dna/

Corson/Colson Family History Association: http://homepages.rootsweb.com/~ccfha/

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