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French La Rose / De Rose

Y-DNA Surname Project
  • 7 members

About us

The goal of this project is to test at least two members of each LA ROSE / DE ROSE family, so any male in the future can be tested and know, immediately, to which family he belongs.

I say "at least" two descendants because if two are tested and they don't match, it means at least one of them has an NPE.  And I say "at least" one has an NPE because I once had a family where the first three men tested did not match each other.  Only when the fourth man was tested did one of them get a match — and, yes, the paper genealogy of all four was well documented.  It is for that reason, by the way, that every man interested in proving his biological origin needs to be Y-DNA tested.  It doesn't matter how correct and well documented your paper genealogy is, you cannot know whether or not you have an NPE unless you are Y-DNA tested.  The NPE rate in my projects is running about 10%.

If you are a LA ROSE / DE ROSE who has been tested, and you find you have no match, the way to increase the odds of getting one is to encourage other LA ROSE / DE ROSE males to be tested, especially ones who claim the same progenitor you do.