I have tracked down most of the One Name Studies for North Carolina Families and put them into a "Space:North Carolina Name Studies". They were spread out over Name Study, Surname, DNA, and other Categories and didn't have a common way of finding them. Some were buried in County Categories and not easily found. I created a sortable table showing the name and counties covered in the space.
I hope others find this useful. I was surprised by how many were out there and there was no common way to find the name and relevant counties covered. If you find others, let me know and I will add them.