Gail, You didn't mention how many Y-DNA markers you tested for, but if you have 37 markers or more, then you should be able to get a reasonable estimate of the male line from ysearch.org. With proper analysis, ysearch will also give pretty good clues for the country of origin. Basically, you want to look for your closest matches, so select "Search for genetic matches" Here is an example I did 10 years ago, estimating that my match for country of origin would be near Crewkerne, England. My eventual actual match was living about 20 miles from Crewkerne in Somerset. However, I should say that the ysearch web site is not very well maintained, and sometimes gives an error. Just try again. Here is my study from 10 years ago: http://ham-country.com/HamCountry/HAM_DNA_Project/Groups/HAM_DNA_Group001_ANCESTRAL.html It is easiest to repeat that by skipping down to step #5. - At ysearch, do the "Search for genetic matches" If you get an error screen try again until you get the error free screen. Next, in the screen for "Search for Genetic Matches"   - click on the "Click here <http://www.ysearch.org/search_search.asp?uid=&freeentry=true>to enter any sequence and search by Haplotype. and then enter your Y-DNA results. There are parameters at the bottom of this page for adjusting how close of a match that you would want to see. Then, as I did in the Ancestral study, add up the surnames (just as I had added up the 'countries of origin' - I had ignored those in the U.S., and added up those in foreign countries). The highest total surname should be your most likely surname.  - Dave Hamm RE: On 11/25/2017 12:14 AM, [email protected] wrote: > Date: Fri, 24 Nov 2017 21:56:49 -0700 > From: Gail Jorgensen <[email protected]> > To: [email protected] > Subject: [DNA] Finding father of paternal great grandfather > Message-ID: <[email protected]> > Content-Type: text/plain; charset="utf-8" > > I am hoping that this is not too basic a question for this group. > During my research of my dad?s family, I discovered that my dad?s father?s father (my dad?s grandfather) was adopted at birth by his mothers husband and given his mothers husband name. > What this means to me is my great grandfather?s ancestors need to be found. My question is what do I need to do to discover who this man is. > My brother did a Y-DNA through family tree DNA and has 3 matches ? One of them is that a genetic distance of 2 and the other 2 are at a genetic distance of 7. None of them have my brothers surname and so far we have not figured out a match that would give us our paternal great grandfather. > Through ancestry DNA there are possibly a few matches that I do not know where the connection is so one of these could be a descendent of a common ancestor as I mentioned so far I can?t figure it out. > If anyone has any suggestions on how I can maneuver through all the places we have DNA to figure this out I would appreciate it. > I have tested at ancestry DNA and family tree DNA and 23 and me and have uploaded raw data to GEDmatch and my heritage. > Any help is appreciated, > Gail Jorgensen