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Family Groups
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The following Family Group breakout has been refined a bit by the use of advanced, 111-marker test results.  Please go to the "Observations" Tab above to get a more detailed definition of proposed family lines within the following Family Groups.  The viewer can download a spreadsheet listing the names of all Project Participants, along with their kit numbers and detailed results, sorted by Family Group.

After our initial enrollment of more than sixty Childers/Childress James River Viking Clan Y-DNA participants, we’ve now been able to use historical documentation and Y-DNA test results to begin to break the overall group down into family units, or “Family Groups.”

You can see how this spreadsheet now appears on the James River Public Website by clicking here.  This practice of establishing Family Groups, then placing everyone into one or the other is labor intensive and is in some cases somewhat subjective, but offers the promise of our ultimate goal of connecting all participants to the earliest Childers settlers to the New World.

We can start off by dividing the groups based on a predominant fast-mutating marker.  You'll see that the attached sheet reflects Group 01 as consisting of all those whose CDYb value equals 37.  Group 02 has those in it whose CDYb value equals 38.

Once we've made these first major cuts, we begin trying to divide up everyone into smaller, recognizable Family Groups.  Each group is defined by the fact that the participants' unique marker values in one marker or more places them together.  For example,
Group 04 consists of all those who have a DYS 576 value of "15" while the baseline is"16."  We’re comfortable in slotting these guys together, but recall that this is a fast-mutating marker, so one or more of these might not belong in this group.  In any event, this is the very first Family Group which we can connect back to the original settlers.  We believe that William Childers (b. 1743 m. Ann Childers) is the son of Joseph and grandson of Philemon Childers, Jr. (b. ca. 1675).  This Philemon, Jr. is thought to be the son of the "original" Philemon Childers, I (b. ca.1630 in Curles, Henrico County, VA.

Group 05 consists of Patrick Childress and Terry Childress.  Only they have a value of "14" in the DYS 456 fast-mutating marker - everyone else (except for the Creed family) has a value of "15" at this location.  In addition, Terry and Pat share a common paper trail and one of Pat’s ancestors is on record as having performed a marriage ceremony for one of Terry's ancestors in Birmingham, AL.  We believe that his oldest identified ancestor "David" might well be a brother or close cousin to Pat’s ancestor "William," both born circa1760 in South Carolina.  Maybe some future Y-DNA participant will match them and offer some additional proof.

Group 06 contains only the Jackson family members.  Note that there is a strong likelihood that these two individuals belong to the above Group 04, since they also have the DYS 576 value of "15." They have only one marker mutation of DYS 464; otherwise, they're a perfect match for most of those in Group 04.  This writer believes the Jackson family's heritage actually is Childers/Childress.  Additional marker testing could reveal the probable generation in which this "non-aligning paternal event" occurred.  This event could have been A) a name change; B) an undisclosed adoption C) infidelity on the part of the wife or D)birth out of wedlock.  Again, extended marker testing could yield up some answers.

Group 07 contains only one individual, Carlos Otha St.Clair.  While it's possible that there was a common ancestor in recent times, it's more likely that the common ancestor occurred generations ago.  Using the FTNDA Relationship Calculator, there is a probability of greater than 50% that a common ancestor existed somewhere between six and 10 generations ago, depending on which Childers/Childress participant Carlos' results are matched against.

Group 08 contains only the Creed family members.  Once again, this situation is identical to the Group 07 situation, except that the common ancestor is much farther removed.  Going back in time, it takes between 10 and 20 generations before there is a greater than 50% probability of a common ancestor, depending on which Childers/Childress results are used to compare.

Group 09 contains those who have taken only the basic 12- or 25-marker test.  Since there are no mutual mutations in the first 25markers that allow us to better define family groups, these results are of little use other than to place the participants into the James River Viking Clan.