The more markers you test and the more family members you test, the more likely you are to find mutations that unite branches of the family, but it is purely a matter of chance whether you will find any. I wouldn't want to promise anyone what the results of further testing might be. Diana > -----Original Message----- > From: y-dna-projects-bounces@rootsweb.com On Behalf Of Wilcox Lisa > Sent: Wednesday, June 23, 2010 4:27 PM > To: Y-DNA-PROJECTS@rootsweb.com > Subject: [Y-DNA-projects] "Parsing" > > Gang, I've got a very homogeneous R1b1b2 family at 37 markers > for all 16 members. > > I've just succeeded in prying a 10,000 person GEDCOM out of > them, which covers half the family, and am working on > obtaining the other brother's descendancy as well. > > We've got ten American generations, more or less, to work > with, beginning c. 1730. > > If they can be persuaded to extend to 67 markers, we should > be able to see some branching, shouldn't we? > > > Lisa >