I believe there is a cemetery on the grounds of the former mental hospital in Jackson. The hospital is still there but most of the buildings are used for other things. Part of it houses an AA program for prison inmates. It has been 5 or 6 years since I have been there but I am sure that I saw gravestones and what looked like a cemetery. I don't live in that area of Louisiana, if I did I would see what I could find. Good Luck.