I've stumbled in here quite by accident, and a happy one it may yet be.
As far as genealogy research goes, my Williamson line has been brick-walled at my G-G-Grandfather. John McCurdy Williamson, for the 30 years I have been searching. All I had for a long time was a birthdate 14 Feb 1819, in Georgia or Tennessee, USA.
Some 8 or 9 years back one of my fathers cousins found an old family bible among her mothers things when said mother passed away, that bible gave us names for the parents of my GGGrandfather.
John Williamson (how common can it get?) and Harriet McCurdy.
US census records show John M's mother born in South Carolina (always the same), while his father is variously reported as born in Ireland, or in Virginia, USA.
The story has always been that the Williamson and McCurdy lines are Scots-Irish, for whatever that's worth. I have not been able to track either John or Harriet so far, and John McCurdy Williamson, other than the birthdate of 1819, is a mystery prior to 1863, when he married, except for some Mexican War enlistment records from 1847 in Central Tennessee.
DNA testing, and I have done a lot of it, has provided me with some leads on Williamson families in the US, mostly back to Virginia, just no paper trail yet. It also however has given me some 'distant cousin' indicators to some Williamson's in the Peebles and Glasgow area of Scotland, and I frequently run across some matches to some Frames also in that same area.
That DNA evidence in hand, I am inclined to believe the family stories of Scottish ancestry by way of Ireland.
My haplogroup designation is a bit rare, and deeper checking would say that before Scotland the male line probably came from one of the Nordic countries, with several distant matches in Norway and Sweden.
We're pretty sure who the McCurdy line was, atDNA evidence confirms it, but again, no paper trail to tie Harriet to the family, so it's still 'guess work' until something turns up.
I was looking to see which clan, if any, those Border Williamson's might have belonged to, if anyone has any idea?