I would say she bought a tomb that will hold up to 4 bodies/caskets. I doubt they bury them in the ground in the Bahama's
There was film of Virgie at the unmarked grave of Daniel. Definitely inground burial.
Oh, trust me, they do. One thing my friend and I did was look around an old cemetary when we were there. Toombstones go wayyyyyy back. It was actually kind of interesting.