I have had DNA testing done as well and am interested in seeing how the various Fears lines are connected. Where are your family's results posted? Mine are attached to my family tree at Ancestry.com. Is there some way to have them compared and analyzed?
I am currently trying to make sense of the various Fears/Fear/Fair etc. families in colonial Virginia and am coming to the conclusion that there may have been multiple immigrations rather than all of us coming from a single immigrant family as I had previously thought.
I am pretty sure that I descend from one James B. Fears (b. 1723) whose will was probated in Prince Edward Co., VA in 1804. Evidence seems to suggest that he may have descended from a family in Chew Magna, Somerset, England whose son, Thomas Fear, immigrated in 1657 to the Virginia Colony as indentured servant to one Thomas Graves.
The Dr. John B. Fears, to whom you referred in your post, seems to descend from a William Fears that immigrated from Ireland. He married Frances Saddler. It is apparently from this marriage that the four sons came -- 3 to Georgia and one to Missouri.
My own branch of the Fears family headed west from VA into TN and KY, finally settling in AR where my grandfather was born.
If you are intersted in collaborating, please let me know.