Attached is a pdf showing the 12 clades that are not closely related. The most recent common ancestor lived 20-30 thousand years ago.
However members of the same clade are closely related within 3-15 generations.
The pdf has additional detail wrt Clade 5 , the largest by far of the all the clades.
Respond with your Clade (i.e. 5A1; James of Monroe) or I don't know with your most distant known Ewing ancestor (MDKEA) and let me know if you would like to find out how to get confirmation of your Clade