I was at the Spartanburg Library last week and they have a book on McJunkins.It goes back to Samuel McJunkin and his wife Ann Bogan and they lived in Spartanburg County, South Carolina.
This my husbands line and I look for it whenever I do research foor my children. I have a set of DAR papers for a girl in Washington State #7765518 is her number and the child she joined through is Daniel McJunkin who was married to Jane Chesney..
I also know there is a cemetery in Belmont, North Carolina that has a lot of McJunkins buried in it. I plan to visit it in the next little while as I know my children's great grandparents(Dora McJunkin and John Foster Masters) are there annd maybe great-great grandparents(Joseph Dyarr and his wife Millie).
Hope this has been helpful.