Same here in NC, we have this accent called high tider that dates back to England centuries ago. I've shown people from England and have heard it really does sound incredibly similar. The settlers arrived near Beaufort, which is one of the oldest towns in NC if not the oldest, and they set up shop on Harkers Island/Down East. Parts didn't even have a connection to the mainland, or even electricity, until like, the 50s. That isolation has allowed the unique accent to still survive. I had teachers with that accent growing up. Took a long time to understand it when spoken quickly. Blackbeard also used to hang out in Beaufort, just as a fun aside.