I’ve also been with a private inholder on a major Civil War battlefield who demonstrated witching for graves. He has researched his property carefully and has good evidence from letters and regimental histories that there are/were graves in the vicinity of where he gets hits, but the site has never been dug and he doesn’t want it disturbed. Nor does he want the location disclosed because the relic hunters would swarm it the moment his head was turned.
I have my g grandfather’s bayonet from CW 1. My mom hid it in a pillowcase.