I am sorry, but I have no knowledge what so ever of anything to help you.
You are so much lucker, than I am.I know, from a newspaper article, that my husband's grandmother died in July 1910, and the cemetery was listed.Then in 1930, her oldest son also died, and once again there was a little blurb in the newspaper, about it, and that he had been buried beside his mother in Grace Cemetery.Now, the state of Tennessee is not able to locate a death certificate for either her or her son, there is no record at the cemetery of their burial, and no tombstones.The ONLY thing I have to go on, is the little blurb in the newspaper.
I also have a great uncle that was buried at sea.So is the entire Atlantic ocean his grave?
When you really think about it, WHAT DOES IT MATTER, where they are buried?All that matters is that they once lived, and because they did, we are here or else someone we love is/was here.
All that any grave contains is an empty shell, that housed a soul.
Going on the maxim, nothing is ever destroyed, it's just changed it's moneculer (I can't spell too well) structure.It is like a helium filled balloon.You burst it, and then all you have is the limp housing for the helium.Our spirit is the helium, and it is still 'out there', nothing will ever destroy it.