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Classification: Query
Message Board URL:
http://boards.ancestry.com/mbexec/msg/rw/CiH.2ACIB/306.1
Message Board Post:
Update - We have received three of the test results in so far. Two of the three matched
exactly. These matches referred to descendants of Samuel B. Carmack born 1808 and
Fredrick Carmack born 1841/45. This now means that Frederick and Samuel share a common
ancestor (we know they are related!) This does not mean they are brothers, but somewhere
they had a common ancestor. This range can be estimated and it is based on assumptions,
probability, and statistics. The two types of Y-DNA tests available are 12 or 25 markers.
Determining the Time to the Most Recent Common Ancestor (TMRCA) is greatly enhanced with
the 25 Marker test when compared to the 12 Marker. For example:
- If two individuals match all markers exactly in a 12 marker test, there is a 50%
probability of a Most Recent Common Ancestor within the last 14 generations (a generation
is between 15-25 years)
- For the 25 Marker test, if two individuals match all markers exactly, there is a 50%
probability of a Most Recent Common Ancestor within the last 7 generations.
Overall this is great news for these two participants. They did not know that a
relationship existed between their ancestors. This may lead them to some knew areas for
research. Since Frederick and Samuel "appear" to originate in North Carolina
maybe we can locate other North Carolina Carmack descendants who would be willing to
participate in the DNA testing.
We're hoping that more of the Carmack males will step forward and participate. This
will be the only way to link families together.
So come on and signup to participate in the Project. Here is a link to the Family Tree
DNA web site:
http://www.familytreedna.com/surname_det.asp?group=Carmack
For additional information please see my website or send me an email:
http://homepages.rootsweb.com/~carmack/
dale