The R-L226 Project - Irish Type III- Background



All Dalcassian, Bryan(t), Casey, Crow(e), Hogan, Kennedy, McGrath, O'Brien


In November 2009, the FTDNA Walk The Y project discovered a new SNP, L226, that has since been found in all members of the Irish Type III haplogroup that have tested to date. A comprehensive website exists that has much information on this interesting Dalcassian haplogroup. See:- Irish Type III website
This haplogroup originated in the counties of Clare, Tipperary and Limerick around the time of King Brian Boru who lived, 926 - 1014. Several distinctive markers indicate the probability of a person being part of this haplogroup, but the presence of SNP L226 is final confirmation.

Who Can Join?
This project is open to those of any cluster who have tested L226 SNP and have returned a POSITIVE result.

Irish Type III
As ALL Irish Type III are testing positive for L226, those of this cluster who have ORDERED L226 may join and be in the 'Pending' Group until their result is known. Request to Join This Group

All other L21+ clusters
If you are NOT of the Irish Type III Cluster, you must be an FTDNA customer and you MUST have a positive L226 result before requesting to join.
Please do not "Request to Join" this project until you have your L226+ result.

Request to Join the R-L226 Project
To Join the R-L226 Project, Click Here. Please indicate in your Join Request that you have either a L226+ result or that you have ordered the L226 SNP test.

Other Projects to Join

If you have tested L226- but L21+/S145+
: Please consider joining the R-L21 Plus Project rather than this one.

General Fund

Project Stats

Statistic Type Count
Big Y 6
Combined GEDCOMs Uploaded 33
DISTINCT mtDNA Haplogroups 36
DISTINCT Y-DNA Confirmed Haplogroups 2
DISTINCT Y-DNA Predicted Haplogroups 1
Family Finder 48
Genographic 2.0 Transfers 8
Maternal Ancestor Information 93
mtDNA 48
mtDNA Full Sequence 22
mtDNA Plus 40
mtDNA Subgroups 0
Paternal Ancestor Information 153
Predicted Y-DNA Haplogroups 168
Total Members 176
Unpredicted Y-DNA Haplogroups 0
Unreturned Kits 0
Y-DNA Deep Clade (After 2008) 40
Y-DNA Deep Clade (Prior to 2008) 28
Y-DNA Subgroups 18
Y-DNA111 44
Y-DNA12 171
Y-DNA25 169
Y-DNA37 168
Y-DNA67 134