Welcome to the web-site of the Clan Irwin Surname DNA Study.  This Study was launched in 2005, with the assistance of Kent Irvin, and its website was re-vamped in 2011 with the assistance of Rick Byers. 

Both the Study and its website were under the aegis of the Clan Irwin Association (CIA) until April 2017 when the Study’s former URL, www.dnastudy.clanirwin.org had to be withdrawn for technical reasons.  Our new URL is www.clanirwin-dna.orgThe Study and its website are now fully independent from the Association, although the Study continues to respect and publicise the Association and to recognise that the interests of the members of the Study and the participants of the Association have considerable overlap.



This is Update No.23 of our Study.  In addition to changing our URL, developments in the last six months include: 

  • We now have over 460 participants with STR test results, of whom 36 have BigY test results and over 70 have L555 Pack Test results. 

  • Of our large Border Irwin genetic family, 37% can now be included in the L555 haplotree.

  • Border Irwins who are not yet on this haplotree are recommended to consider taking the $119 L555 SNP Pack test.

  • Our Study remains at the rapidly evolving field of Surname DNA projects, particularly in its ability to connect the human haplotree to conventional pedigrees. 

                            James M Irvine,  Surrey, UK;

 Study Administrator, 1 November 2017;


Kit no. 29479;  ISOGG Member.

NB Our main results table, the table in section 3.2 of the Analysis Update, and the lecture attached to Supplementary Paper 9 will be posted shortly.