How accurate is GEDmatch's admixture utility for recent ancestry?

+4 votes
1.4k views

It is more accurate than I realized.

I've found ten people in WikiTree who can trace all their ancestors back at least four generations to the same country and have a GEDmatch ID:

http://www.wikitree.com/index.php?title=Space:Autosomal_DNA_Ethnic_Admixture_and_Ancestry&public=1

Today I discovered that GEDmatch's Oracle-4 attempts to pinpoint your [modern] ethnic group of origin.  https://www.gedmatch.com/gedwiki/index.php?title=Admixture

Oracle-4 shows the three persons in WikiTree with all English ancestry as

1 Southwest_English @ 3.794286, 2 Southeast_English @ 3.947610

1 Southeast_English @ 2.674424, 2 Southwest_English @ 2.747479

1 Southeast_English @ 2.653272, 2 Southwest_English @ 3.738122


The one person with all Italian ancestry:

1 North_Italian @ 5.280625, 2 Tuscan @ 9.284982

The odd ones are the person with all Danish ancestry:

1 North_German @ 6.236578, 2 Swedish @ 6.555415, 3 Danish @ 6.688893

and the person with all German ancestry:

1 South_Dutch @ 2.905174, 2 West_German @ 3.139654, 3 French @ 7.970687

The others have old Family Finder GEDmatch IDs.

in The Tree House by Peter Roberts G2G6 Pilot (521k points)
edited by Peter Roberts
My most accurate of all the companies and those within Gedmatch is K-15

1 Answer

0 votes
I just ran the Eurogenes one as according to FTDNA's newest version of Origins I am  European99%

 British Isles57% , West and Central Europe36%,  Iberia6%,   and trace at <2% Finland

It seemed to fit pretty well what I know of my paper genealogy
by Laura Bozzay G2G6 Pilot (624k points)

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