Well, apparently I don’t know how to scrape the inside of my cheeks properly, since the lab took extra long to culture my Y-chromosome DNA. But I finally have a complete 37-marker Y-chromosome DNA test back, so now our Taylor family has three datapoints from which to triangulate a historical haplotype for our common ancestor, John3 Taylor (d. 1741). Here is the data from three test subjects, including me, in the tabular form published by familytreedna.com:

There are three boxes highlighted in blue, in which one value does not match the value for the others. 100194 differs from the others in the last locus, and 157892 differs from the others in two other loci (nos. 34 and 35 out of 37). Each disagreement between values represents a mutation somewhere in the family tree, but where? (Continued)








