> My participant has been allocated a Haplogroup and has a lot of matches at the 12 marker level, but only 1 at the 25 marker level and none at all at the 37 marker level, which I understand is quite rare. My concern is what this means! I am worried that perhaps this means that the sample wasn’t very good and it has been possible to extract only limited information from it. I doubt that there is a problem with the sample, I am sure FTDNA report inadequate samples as such. Most people support the view that the only 'significant' results are with 37 or more markers. With my common surname (not my ONS) I have a zero genetic distance match at 37 markers with one person. Unfortunately for both of us neither have been able to find birth details for our earliest known male line ancestors around 1730 - 40 although we know they were living 50 miles apart. What matters for the ONS is matches with others of the ONS name, probably none have tested. Colin Stevenson