I have done my DNA tests (autosomal and mtDNA) with familytreeDNA.com, and autosomal with ancestry.com and livingdna.com and have uploaded my raw data to gedmatch.com and myheritage.com as I am still searching for my 2nd paternal great-grandfather as outlined here (link opens in a new window). Click on the tab "Most wanted ancestor". According to family lore my father's ancestors are from Scotland. My DNA test results confirm Scotland, Ireland and England. Given name and origin of my 2nd great-grandfather unknown. Various records list his place of birth as Tennessee or North Carolina.
I have my family tree, which my DNA matches can view, on familytreedna, and a non-public family tree on ancestry.com to which I can give you access to upon request.
If you have the surname Brown or any other of my surnames (surname list at the above website) in your family tree and think we might be related please email me so that we can exchange our gedmatch kit numbers for comparison. Maybe we can figure out how we are related. I have a paper trail for my maternal ancestors back to the 1600s, one line even dates back to the 1400s. Thanks!