Click on the FAMILY DATA link on the left hand column, then click on LINEAGE SUMMARY.DNA results are in matching 'sets' -- when matching has occurred.Use your FIND feature to locate the "Glasgow, SCT to PA" group.This family grouping has samples from at least two descendants of John Alexander/Margaret Glasson,All of the people in this group are closely related -- as shown by DNA results.As far as I know, they haven't identified a 'common' ancestor for their entire group, yet.[Notice that this group is color coded in a color I would call 'aqua blue'.]
In comparison, use your FIND feature to locate the group identified as "Seven Brothers/Two Sisters" group.[This is the large ALEXANDER group who first settled in Cecil/Somerset Maryland with large, large branches migrating to Mecklenburg Co, NC in the 1750s.]This family group can also be shown to be closely related -- as shown by DNA results.[Notice that this group is color coded green.]
You can compare the 'raw' data by returning to the HOME PAGE of the website and clicking on OUR Y RESULTS.The Glasgow group's data is again color coded 'aqua blue' and the Seven Brothers group is again color coded 'green'.Using the FTDNA guidelines for comparing genetic relatedness, the results show that these two groups are distinctly NOT related.[They have 17 'differences' when comparing results at 67 markers.FTDNA guidelines describes anything over 11 'differences' at 67 markers as "Not Related 55/67 You are not related and the odds greatly favor that you have not shared a common male ancestor with this person within thousands of years."So, despite the same ALEXANDER surname, the Glasgow group and the Seven Brothers group are NOT related.
There are something like 110+ participants on the project.When you count the matching 'sets' as one lineage each and then count the people who don't have any matches yet, we are seeing at least 40+ separate and distinct ALEXANDER lineages.
If you have any questions about the DNA results, please feel free to write Roger Alexander at email@example.com