Looks like you have made a lot of progress in your research of your Edmonton family line as well as the Livingstons in Scotland.
Have you thought about creating a family tree wall chart of your Livingston and other families you are kin to? Great to have on display for visiting relatives and looks very cool.
As mentioned in my post prior to yours, a fourth Livingston of Morvern Livingston Origin was tested and the update to that message is that Stephen Livingston whose family was residing at Achabegg, Morvern in the 1840's before coming to American in 1851 and his earlier ancestor was a brother of Donald Livingston 1728-1816 of Savary, Morvern, was tested and found to be a close match as suspected with the three other Morvern LIvingstons tested and matching with our Parker Livingston Group. So we know have four Livingstons with ancestors of Morvern origin, one of neighbouring Ardnamurchan ancestry, a good number with documented Mull ancestry and others with likely Argyllshire ancestry as well. Two or three with documented Perthshire ancestry but matching with the Parker Livingstons of Argyllshire origin and given that Perthshire in in the highlands and near Argyllshire it seems likely their Perthshire ancestors migrated to neighbouring Perthshire in the 1700's and originally lived in Western Argyllshire from Mull, Morvern, Ardnamurchan or one of the other Parishes in Western Argyllshire. What I find encouraging is the original and more recent participants with documented or suspected Western Argyllshire with documented connections with Mull and Morvern virtually all of them except one in the last 10 years matched with the Parker Livingston group. I can now tell you that with one descendant of the famous Savary, Morvern Jacobite Donald Livingston's brother tested it looks like Donald Livingston and his Achnacree Maconlea and Morvern Maconlea/Livingstone family line is connected to our Morvern and Mull dominated Parker Livingston Group. There is also maybe a chance that another Livingston of Savary, Morvern ancestry a direct descendant of Donald Livingstone 1728-1816 may be interested in the Maclea Livingstone DNA Project. I will let you know if that is the case. I know from talking to participants that the Livingston matches showing up on each participants list varies depending on the matches but I think there are now over 20 Livingstons who have done the 67 marker test including one who has done the 37 marker test with the Parker Livingston Group. Also others of other families matching with these Livingstons to some degree.