Thanks for your offer but I was also lucky enough to go to Gnadenhutten, Ohio this summer and I also have photos of Peter Ginthers grave along with everyone else's I could find.I also have a copy of Abraham Ginthers will and will include it with Peter's.
I could not find ALL of the graves of the family but will go through what I have and see if you would be interested in any of them.I was able to go to all of the cemeteries in the area.
Happy Hunting!! Jan
P.S. I'm not able to check my email very often so don't give up on me if I don't answer right away!!