I would contact the state of Michigan. I've had the same problem with the Pontiac State Hospital aka Clinton valley center. It is not town down. The place was so horrible that they made a horror movie there before demolishing it. Most of the people that died there and no family to claim them, etc. were buried in one cemetery in Pontiac. There is one area where all of these people are buried and you can recognize it by all the white slabs sticking out of the ground with nothing on them but numbers. That is is the numbers still show up due to age.