World Families Forums - Courser Y-DNA result

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Author Topic: Courser Y-DNA result  (Read 2056 times)
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« on: January 20, 2006, 09:29:07 AM »

Hello all,
Since the Castle DNA project at FTDNA includes the surname Courser, I wanted to report the Y-DNA results of a Courser participant in the Corson DNA project.  He joined because documentary evidence suggested that he descended from Benjamin Fletcher Corsse (1692-1770), son of a Corson progenitor named Jan Corszen (ca. 1649-1703).  His 43-marker haplotype matched exactly the ancestral haplotype determined for Jan Corszen.  His estimated haplogroup is I1a.  You can see the his haplotype and lineage (under participant #19) at the Corson DNA project website:

Michael Corson
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« Reply #1 on: April 27, 2007, 03:24:08 PM »

If you haven't already done so, I recommend posting your family tree on our pedigree forum.  All pedigrees posted on that page will be transfered to the official surname project website, so that other researchers may find you and contact you.  There are directions on what to do at that page:

If you want to see the pedigrees and results of other researchers, please go to the official project website.  You may find other researchers already working on the same family lines that you are:

Also, here is a direct link if you want to go ahead and order a DNA test.  Keep in mind that even folks that are not direct paternal/maternal decendants of this line can still get tested.  To do so, find a relative who IS a direct decendant and sponsor their test for them.  We provide comparison for test results for our project members on our surname websites, and you can use FamilyTreeDNA or Y-search to do a global comparison match (over 1/2 million DNA tests for genealogy have been conducted so far):

And, if you want more information, there is a lot at the website.  I recommend starting at our Frequently Asked Questions page:

If you have any questions, please email terry:
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