Have any of you heard of the recent proliferation of surname studies using DNA testing?The latest research tool now being used for over 450 surname studies in the USA compares the Y-chromosome of males with the same (or similar) surname e.g. O'Kane, O'Cane, O'Cahan, Kane, Cane, Caine etc. The Y-chromosome is passed from father to son, virtually unchanged, for up to 100 generations!A female with the name Kane (or variant) can participate in the study through a brother, uncle or male cousin. The testing is apparently done by a number of labs set up especially for genealogy.The most popular American one seems to be Family Tree DNA which is based in Houston, TX with the lab at the University of AZ.Trinity College, Dublin, Dept. of Genetics is presently conducting a study in order to determine the origin of ancestors of some common Irish names - Kane/O'Kane etc. is unfortunately not included. I am writing a book about my mother's (Irish) family which, according to legend and oral history, is descended from the ancient O'Cahan clan of Derry.The story relates that, ("lost in the mists of time") one of Henry O'Cahan's sons, also named Henry, went by the name Henry McHenry O'Cahan.The double surname McHenry-O'Cahan was supposedly used for a number of generations and then the O'Cahan was dropped in one (or more?) branch/es of the family.This family became know as McHenry.Some McHenrys trace their ancestry to Scotland but I am convinced that my McHenrys are Old Irish and descend from the O'Cahans and am determined to prove it. Hence my interest in participating (through some male McHenry cousins) in a O'Kane/Kane etc. DNA study which would prove once and for all whether 1) the Kanes/O'Kanes/O'Canes/Keans etc. etc. are really descended from the same ancestor; 2) some McHenrys descend from the O'Cahans. Anybody interested?? I propose that either two separate studies be set up:- 1) O'Kane and variants 2) McHenry and variants or 3) the two surnames be combined in one study. The cost of testing has come down considerably from $200+ US to only $99 for a "12 marker test".The test involves brushing the inside of your cheek with a soft brush (something like a soft toothbrush) and returning the brush in a sterile solution to the AZ lab for comparison with others in the study.When 12 (or 11, due to slight possible mutations over the generations) match, this proves conclusively that these two people are related through a common ancestor.Further testing can also be done to determine how closely i.e. 4th, 5th etc. cousins) they are related. Both Chris Pomery and Kevin Duerinck have great websites explaining the testing in more detail, as well as Family Tree DNA. Since I live in Canada I feel that the mailing costs, exchange rate on the dollar, possible duty etc. would make pricing prohibitive for me to set up a study - and would take valuable time away from my writing.However if any enterprising O'Kane (or variant) is interested in doing so I have three McHenry participants (and possibly up to 12 more from the US) who would be interested in participating in a joint O'Kane-McHenry study. Have any of you ever heard of the McHenry connection described above?The McHenry castle (now derilect) is called Castle Kenbaan/Kenbane and the ruins are located near Ballycastle in North Co. Antrim. Eager to hear from all of you who are interested!!