Marker appears in “Snake Man Of Appalachia” (2012)
For some reason (East Kentucky), Mayes’ marker show up in snake handling documentaries like this one – “Snake Man Of Appalachia”. This is the trailer and the marker appears right at the beginning.

For some reason (East Kentucky), Mayes’ marker show up in snake handling documentaries like this one – “Snake Man Of Appalachia”. This is the trailer and the marker appears right at the beginning.
https://www.imdb.com/title/tt1957595/