Joining the Study

All adult males around the world with the surname Irwin, or its variant spellings such as Arvin, Ervin, Erwin, Irvin, Irvine, Irving and Urwin, are invited to participate in FTDNA's Irwin Clan Project and in this independent Clan Irwin Surname DNA Study.  Females are welcome to participate if they can first persuade an adult male relation with such a surname to undergo a yDNA test on their behalf.  Adult males with other surnames are also welcome if their yDNA signature is a close match with an existing participant.

There is no membership fee or admission form.  Membership of both FTDNA's Irwin Clan Project and this Study are achieved automatically by ordering a yDNA test on-line at:


or, if you already have a yDNA test and its results meet the criteria above, by asking FTDNA (groups@ftdna.com) to add your name to the Irwin Clan Surname project.

For most prospective participants we recommend FTDNA’s 37-marker yDNA STR test at $119, plus a shipping charge of $9.95 (USA & international).  Alternatively their 12-marker test at $59 (plus shipping charge) offers a cheap start, but it is usually found desirable to upgrade to 37 markers.  FTDNA no longer offer discounted rates for project members, or their 25- and 67-marker tests, but their 111-marker STR test is $249 and they also offer various upgrades and SNP tests (see "Choosing your next test" below).
 
Three ways to reduce the cost of a DNA test may be considered:
1.  Individuals may persuade other members of their family to share the cost.  
2.  Our General Fund can usually finance a 37-maker yDNA test for individual male Irwins with a paternal pedigree that reaches back to Scottish ancestors in the 17th century.
3.  FTDNA often have bargain-offer sales from mid-November to end December, for a week in April around DNA day and again in June around Fathers' Day.
 
We have chosen FamilyTreeDNA (“FTDNA”) as our preferred testing company because, in the absence of any international standard for yDNA tests, it has the largest data bank.  FTDNA was established in Houston, Texas in 2000 and is now the only company offering a comprehensive series of yDNA tests.  It has conducted nearly 1,000,000 yDNA tests, hosts over 10,000 registered surname studies, and provides useful support.  No participant in our Study has any financial connection with FTDNA.

FTDNA's yDNA tests are not thought to have any medical significance and, lacking any custody trail, are irrelevant to paternity cases.  However DNA test results may bring surprises and be disappointing: prospective participants are advised to read section 2.9 of Interpreting DNA Test Results. Use of test results for Law Enforcement Matching is an emotive issue but FTDNA give each customer the ability to opt in or opt out at their choice, and to change their opting at any time if they so wish.

When FTDNA receives your application they will send you a sample test kit and simple instructions on its use.  On receipt of your two saliva samples they will undertake the relevant analysis, enter your results in their confidential database, compare these results with those of other participants in this database, and advise you of any testees with exact or close matches.  We recommend that you complete FTDNA’s Release Form so you you gain access to the e-mail addresses of these testees, and to quantified probabilities of how closely you are related to them.  Uploading to “Ysearch” posts your results on the web and enables non-FTDNA participants to contact you without your name or e-mail address being disclosed.
When your test results are complete FTDNA enable you to download a certificate and a note on “Understanding your results”.  In addition your Study Administrator will enter your test results in the Results Table for the Study and discuss with you by e-mail their significance and implications. 
 
If you already have the results of a yDNA test with FTDNA and your surname is Irwin (or variant spelling) but you are not a participant in this Study you are welcome to e-mail the Study Administrator or groups@ftdna.com to request participation at no additional cost.  

If you already have the results of a yDNA test with the Genographic Project and your surname is Irwin (or variant spelling) you can also participate in this Study at no additional cost:  simply log in to your Genographic Project page, go to "What else can I do with my results", click on "Learn more" and follow the instructions. 
 
If you already have the results of a yDNA test with another company and your surname is Irwin (or variant spelling) you are also welcome to participate in this Study, although for full benefits it is desirable to re-test with FTDNA.  For this a discount may be available - please contact the Study Administrator. 

If you already have the results of a yDNA test with any company and have a surname quite dissimilar to Irwin but your yDNA signature is a close match with existing participants (as evidenced, for example, by FTDNA "Matches" page showing all or nearly nearly all of your matches are with Irwins, or by examination through ysearch), then you are welcome to contact the Study Administrator to request participation in this Study. 
 
Leaving the Study
You may request to leave this Study at any time by sending an email to the Study Administrator, or to groups @familytreeDNA.com advising your wish to leave the Irwin Clan Surname Project, or by clicking the relevant "Leave" box on your Project Preferences page. 

NB 
1.  Any individual who has taken a DNA test with FTDNA may ask either FTDNA or the project administrator to join FTDNA's Irwin Clan Project and, if they have opted to share their results in public, will have their STR data displayed by FTDNA on that project's website (https://www.familytreedna.com/groups/irwin/dna-results).  Membership of this Clan Irwin Surname DNA Study is restricted to (1) members of the Irwin Clan Surname Project whose surname is Irwin (or similar spelling thereof), or who share the yDNA STR signature of such an Irwin, and (2) Irwins (or similar spelling) who have yDNA test results from a company other than FTDNA. Individuals who do not meet these criteria may be asked to Remove themselves from the FTDNA Project.  They can of course continue to watch this Study's progress on this public website.  If relevant they may also join the Irvine Clan Autosomal Project.  

2.  Individuals who have an Irwin ancestor or relation through a female line should note that participation in this Study will not help you, because yDNA testing is only relevant to paternal ancestry.  Anyone interested in finding or proving a maternal relationship with someone with the name of Irwin (or variant spelling) should consider taking a Family Finder (atDNA) test at $59, or possibly a Mitochondrial (mtDNA) test.  

3.  Individuals who have taken a Family Finder test and have an Irwin or variant spelling in their recent ancestry are invited to join the Irvine Clan Autosomal DNA Project - see https://www.familytreedna.com/groups/irvine-clan/about and  https://www.familytreedna.com/public/IrvineClanThe following table shows the probability of "finding" a match with a cousin who has also taken this test:

Relationship Match Probability
2nd cousins or closer > 99%
3rd cousin > 90%
4th cousin > 50%
5th cousin > 10%
6th cousin and more distant

Remote (typically less than 2%)


Note that not only must the cousin be relatively close, but he or she must also have taken a Family Finder test.  This test is thus useful for confirming two suspected close cousins are indeed related, and may be of to a single participant "fishing" for possible unknown cousins, especially those resident in USA, and a growing number of non-Americans are now taking Family Finder tests as well. Incidentally, according to Ancestry’s calculations, the average British person has around 1,570 fourth cousins, 17,300 fifth cousins, and 174,000 sixth cousins.

4.  All those interested in genetic genealogy, whether members of this Study or not, are encouraged to join ISOGG, the International Society of Genetic Genealogists - membership is free.  See www.isogg.org/joinform.html







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