You are speaking of Ocracoke Island residents. They and the people of Manteo also have the old accents that are today unique to the Outer Banks. The outer banks has been invaded by Yankees the last two decades and isn’t like it was when I was growing up. We called it Nags Head, not Outer Banks. It is near impossible to get a t-shirt there now that does not say Outer Banks. There were two great documentaries on the DOC channel on Direct TV recently that interviewed Ocracoke people and then Western North Carolinians about speech patterns and words unique to their area. If you see it again, watch it.
Thanks