My sister and I match a man and his sister as 4th cousins. Both families have Lithuanian ancestry as well as ancestry from Great Britain, and while we suspect we are related through our Lithuanian ancestry, we have no proof of that. A week ago, when I triangulated my results with this male cousin, I found only the two sets of siblings; however, when I did the same thing today, I found a man who tested in 2011 was new to the mix. His surnames reflect Great Britain, Switzerland and Germany. I notified the male cousin match, and he has no cousin match listed with the man I find in our triangulation report. When he triangulates me with his results, he finds a female with the surname Karlsson, no surnames listed. I do not have any matches with this name in my results.... I am confused! How valid are any of these results? Mary