Reed more
Much has happened since the last update in
May 2008 with four new Gaston members, including one from Ariège in
southern France.
Not only does he not match the Ulster Gastons but all three of our French
Gastons are in different haplogroups (haplogroups are determined by
specific genetic markers and are generally quite ancient, going back thousands
of years). Although our hope of finding the French patriarch of the Ulster
descendants is still alive, we are less certain of the Jean Gaston legend after
three non-matches. An alternative hypothesis, with some DNA support, is that
the Gaston name did originate in France
but it was brought to the British Isles during
the Norman period (1050-1250). This remains speculative for the time being.
Family Tree DNA (where our DNA testing
is done) has a database of over 140,000 Y-DNA records to compare to.
This has provided us with some interesting and unexpected matches, such as
to the so-called Leinster group. This
group is mostly defined by DNA comparisons rather than actual documentation.
Its basis is a study of Irish surnames linking them to the former province of Leinster
in what is now the Irish
Republic. It appears that
the Ulster Gastons have a common ancestor with this group sometime in the 14th
century. It is hard to reconcile this match with our Gaston legend, but there
was considerable mixing of French people with English and Irish during the
Norman period. (See http://en.wikipedia.org/wiki/Anglo-Norman)
All of our U.S.
members descend from a single patriarch who likely lived in Ulster, Northern Ireland in the late 1600s.
We know from ship registers that Gastons from other countries immigrated to the
U.S. (and likely Canada as
well), but their descendants do not appear to be interested in DNA analysis so
far. It is also difficult to recruit members from France, partly because there are
not many French males with the Gaston surname, but also because DNA testing for
personal use is discouraged in this country.
Now that most of our members have been
tested on 37 markers new patterns are emerging and some earlier linkages on 25
markers have proven to be more distant. For the Ulster descendants we have
discovered a key marker that appears to distinguish between two main
sub-groups. So far, these groups do not conform perfectly to the
pedigrees posted by our members - see http://www.worldfamilies.net/surnames/gaston/pats. It is not yet certain that this key marker is
totally reliable, since there are always statistical uncertainties associated
with DNA testing. On the other hand, our pedigrees are not always reliable
either. More new members, especially ones with well documented pedigrees,
will help to resolve these questions.
If you would like to join the Gaston surname
project, follow this link https://www.familytreedna.com/surname_join.aspx?code=T93730&special=True&projecttype=S. The 37 marker test is recommended, especially
for descendants of Ulster Gastons.
Back to
Menu