I think there are machines that can detect abnormalities in the ground too.I understand that part...like I said in my post, I have used well dowsers. But dowsers aren't listed in the phone book... so I have no idea how you would find one that did cemeteries.
Also, with a well dowser. ..you can ask around and see just how accurate they are.... was the water at the depth that they said you would find it? How could you check the accuracy of a cemetery dowser??