Thanks, Colleen, I will check to see if there is a Rusk study. Thanks for the info. Joan Griffin Rusk a few people of all lines who would match on these. The last 13 are mostly different form the ones that RG uses. These last 13 are the ones that vary more, I believe, and there is a much higher chance of a mismatch. I can be corrected on this, but understand that FTDNA wants people to match on those first 12 so they will continue for the rest of the remiaing 13. Also, to be compatible with our study, your husband would have to be a male Fitzpatrick. The tests that either company does are on the Y-chromasome, the one carried only by the males in the family. If his last name is Rusk, then he probably wouldn't be part of our study. The good news is that there might be a Rusk study in the works. I don't know. But if you search on google for Chris Pomery's web site, he has a list of all the single name studies going on right now. It has contact info for most of them, too. If I can answer any more questions on DNA, give me an e-holler. Colleen ==== IRL-CAVAN Mailing List ==== For the IRL-CAVAN-L archives, go to http://archiver.rootsweb.com/th/index/IRL-CAVAN