New DNA results are in for descendants of Samuel Whitney! The one proven descendant of Samuel Whitney and another individual who we believe may also descend from Samuel have DNA results which differ at 2 out of 25 markers tested. This means that: * There is a 50% probability that their most recent common ancestor was no more than 11 generations ago. * There is a 90% probability that their most recent common ancestor was no more than 23 generations ago. * There is a 95% probability that their most recent common ancestor was no more than 27 generations ago. Based upon their combined results, we've been able to determine a preliminary DNA "signature" sequence for Samuel out to 25 markers, with two locations which we're not 100% sure about. Based upon this information, we can state the following: * The DNA sequences for John Whitney and Samuel Whitney differ in 6 out of 25 markers, meaning that they are in all likelihood unrelated. * The DNA sequences for Henry Whitney and Samuel Whitney differ in 7 (and perhaps 8) out of 25 markers, meaning that they are in all likelihood unrelated. * The DNA sequences for John Whitney and Henry Whitney differ in 9 out of 25 markers, meaning that they are in all likelihood unrelated. Thus, it appears that we have three distinct main Whitney lines in the U.S. and perhaps several others with fewer representatives. Tim