Is anyone in charge of the Cemetery? Being in that area, is it connected to a church?
Have you looked it up on line?
Where is the picture from?
If you could get someone to go there,they could do a rubbing. Put paper over the image and use chalk, crayon, or other media from an art store,just rub back and forth. The art school could explain how to do it.
Anytime I can read something because of location or clearity it is what I do. Bev.