About us
Results for the first 12 markers for our first participant were posted on July 27, 2009, and his 37 marker results were posted on August 11th. Results for our second participant were posted in September, 2009, and results for our third participant were posted in April, 2010. Results indicate that all are members of the haplogroup known as R-U106. The FTDNA haplogroup predictions are less specific than R-U106, indicating that they are members of the R-P25/R-L278 or R-M269 haplogroups. Since R-M269 is a subset of R-P25/R-L278, this is consistent with the possibility that the three men share a common ancestor with the Kasbohm surname, and Jim Cullen's haplogroup predictor is more specific than that, giving ~100% probabilities that these first three participants are members of one of the R1b-Frisian groups, with probabilities of membership in the R1b-Frisian 3 subgroup of at least 90% for all of them. The R1b-Frisian 3 group is known to be a subhaplogroup of R-U106, which is in turn known to be a subhaplogroup of R-M269.
Although their results are similar, these two lines do not match so closely that we can say that they probably share a Kasbohm ancestor based on these results alone. They do not match as closely as men who share a common ancestor since the adoption of surnames usually do, but they match each other much more closely than most unrelated individuals do. There is more than one possible explanation for this borderline match between these participants. Their most recent common ancestor may have lived before the adoption of the Kasbohm surname. There is some evidence that the Kasbohm name was in use at a very early date, so it may be that the two lines inherited the name from a common ancestor who lived a relatively long time ago, and that the borderline match is simply the result of the accumulation of mutations over that relatively long timespan. Since the accumulation of mutations over time is random, it is also possible that the two families share a relatively recent common Kasbohm ancestor, but have by chance accumulated mutations separating them at an unusually high rate since their lines branched apart.
Testing of additional Kasbohm men from these lines and related lines would be helpful. Testing of a known distant cousin of our first participant would be especially helpful, because if our first participant has recent mutations in his line, he would probably not match a distant cousin at the markers where those mutations occurred. If the distant cousin matched the other men in the project, this would imply that the most distant known ancestors for the two lines had very similar haplotypes and could have been very closely related.
Although their results are similar, these two lines do not match so closely that we can say that they probably share a Kasbohm ancestor based on these results alone. They do not match as closely as men who share a common ancestor since the adoption of surnames usually do, but they match each other much more closely than most unrelated individuals do. There is more than one possible explanation for this borderline match between these participants. Their most recent common ancestor may have lived before the adoption of the Kasbohm surname. There is some evidence that the Kasbohm name was in use at a very early date, so it may be that the two lines inherited the name from a common ancestor who lived a relatively long time ago, and that the borderline match is simply the result of the accumulation of mutations over that relatively long timespan. Since the accumulation of mutations over time is random, it is also possible that the two families share a relatively recent common Kasbohm ancestor, but have by chance accumulated mutations separating them at an unusually high rate since their lines branched apart.
Testing of additional Kasbohm men from these lines and related lines would be helpful. Testing of a known distant cousin of our first participant would be especially helpful, because if our first participant has recent mutations in his line, he would probably not match a distant cousin at the markers where those mutations occurred. If the distant cousin matched the other men in the project, this would imply that the most distant known ancestors for the two lines had very similar haplotypes and could have been very closely related.