Dear Linda, I think that Ann Turner already responded to most of your questions earlier this morning so I won't address all of them now, but let me know if there are still questions in your message below after you have read Ann's and my messages. It is unfortunate that your child isn't willing to do a 23andMe or Family Finder test as those results would be very helpful for you. My suggestion is that you continue to gently encourage them to be tested and I would offer to pay for the test yourself. Assuming that your child never does any autosomal DNA testing, then your next best approach would be to do a 23andMe and/or Family Finder test on any siblings that you have as well as at least one child from each of those siblings. If feasible, I would also test the spouses of your siblings if those siblings have children who are being DNA tested. This would allow you to phase the data for a two parent/one child trio. If you have no siblings, then the next best thing to do would be to test any first cousins you have and at least one child from those first cousins. I think that it would be wise for you and anyone else who hasn't done any chromosome mapping up to this point in time to download my spreadsheet at http://dl.dropbox.com/u/21841126/phased%20genome%20of%20Robert%20and%20Betty %20Janzen.zip that shows the mapping I have done for my mom's DNA data up to this point in time. The SNP data in the spreadsheet was phased using my program at http://dl.dropbox.com/u/21841126/phasing%20program%20%28small%20version%29.x ls. (See instructions at http://dl.dropbox.com/u/21841126/phasing%20program%20instructions.rtf.) Some additional explanatory information is at the bottom of the spreadsheet. I haven't had time yet to map my dad's DNA from his cousins who have been tested, but I plan to do that in the near future. As you review this spreadsheet, it would probably be helpful if you refer to my mom's pedigree chart at http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=PED&db=janzen&id=I8 for clarification. In my opinion, everyone should be doing chromosome mapping similar to what I am doing. My spreadsheet currently only has the SNPs from 23andMe's version 2 in it, but I am planning to update this to include all of the SNPs from 23andMe's version 3 chip in the near future as well. For those of you who haven't created a spreadsheet such as this yet, I would suggest that you include the SNPs from 23andMe's version 3 chip if you have been tested with that chip or with the SNPs on FTDNA's Family Finder test if you have done that test. You need Excel 2007 or a later version to create a spreadsheet like this. I would also like to make a few other comments about the spreadsheet. If you review it carefully you will note that are some segments that I haven't yet mapped to a specific ancestor and I have simply added a comment such as "contiguous segment per James Cole" on row 512455 and adjacent rows. This means that James Cole has a long matching segment (over 10 cMs or so) with my mom and I thus know that this segment came from a matching ancestor, but I haven't yet been able to determine the ancestor yet. In any case, knowing the boundaries of the contiguous segments such as these is helpful because it means that there hasn't been a crossover in that particular DNA segment going back at least as far as whenever my mom and James Cole shared a common ancestor. Sincerely, Tim Janzen -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Linda Sent: Saturday, January 07, 2012 5:34 AM To: [email protected] Subject: [AUTOSOMAL-DNA] SUBJECT: How do you work a 5 way FF match with few clues ? As Jim said, I believe I am beginning to understand how this works. Thanks Tim for your very comprehensible explanations and to everyone for the input. For me, just now, I take away from this thread: 1. My GEDMATCH.com results are results that are true IBD and would be the best choice for working on in the immediate and foreseeable future. Am I understanding this correctly? 2. So, my initial query would be resolved by requesting those other four matches to upload their results to GEDMATCH.com. Is this correct? 3. If there was still a match with any of the four it would remain to determine all other info such as from mother or father DNA and to look for surnames in common. Neither my husband nor myself have living parents and only one living child who is not willing to do any DNA testing at all at this time. So, unless new technology is found for working with atDNA am I correct in thinking my best results would always be from a program such as GEDMATCH? I am in constant awe of the folks who post here and freely share so much knowledge. Thanks to all. Linda