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Home: Surnames: Estabrooks Family Genealogy Forum

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Easterbrook/Esterbrook/Estabrook/etc. Y-chromosome DNA Study
Posted by: Frank L Griggs (ID *****3729) Date: May 24, 2007 at 11:42:57
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Hello All,

We would like to explore the possibility of forming a Easterbrook/Esterbrook/Estabrook (including any similar surname) Y-chromosome DNA Study Project. Before we go too far in setting up the project we would like to see how many people might be interested in participating. Y-DNA testing is a relatively new tool in genealogical research and looks at certain genes on the Y chromosome that is possessed only by males and is inherited only from father to son, thus the study is restricted to only males. The way the test works is that each male has one of several possible "alleles" at each "gene site" that is passed down on the Y-chromosome. These differences are what distinguish individuals and their close paternal line relatives from other individuals and paternal lines. When the test results are compared to other men with the same or similar surnames, one can see if there is recent, common paternal line descent depending on how closely the results match.

The tests will be administered by a company named “Family Tree DNA”, their website is located at Once we qualify as a Surname Group, participants will receive a substantial discount on the cost of the test. The actual test is quite simple, participants will be mailed a DNA Test Kit and all they have to do is swab the inside of their mouth a couple times, mail the kit back and that’s all there is to it. It takes about 4-6 weeks to get the results back.

Y-DNA testing is at its most powerful when used in conjunction with well documented genealogical records, therefore we will ask all participants in the project to provide a GEDCOM or a written summary of their ancestry going back to your earliest known ancestor. Participants that know who the immigrant to America was of their particular line and have that line documented will be of great value to the project because their y-DNA test results will become the baseline upon which the results from "unconnected" participants can be evaluated and compared.

There are several different types of tests, but the three types that we would be interested in are the 12-marker, which runs $101, the 25-marker, which runs $150 and the 37-marker test, which runs $191 (these are all Surname Group prices). The 12-marker test is usually of lesser value, but either the 25-marker or the 37-marker would be a great place to start.

Anyone that is interested or has any questions, please email me at or post a response to this message board. Here’s hoping many of you elect to participate.

Frank L. Griggs

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