@Auroraskies - Yes, this is still relevant, I haven't worked with my cemeteries beyond beautification of the lot. I'm still trying to 'round-up' the hidden dead of some worlds. I already play with memories disabled, but thank you for the suggestion.
@ScottDemon - Correct me if I've gotten this wrong. Let's use the cemetery in Sunset Valley as an example. Are you saying if I take the cemetery as-is and save it to the bin with the ghost still on the lot, when I reinstall the lot the information for the ghosts will be removed and the headstones replaced with the 'remains' ones? If so, how does one transfer or preserve the deceased? Do I have to designate a sim to collect all of the headstones prior to saving the lot? If so, then I am about to introduce a new job into my worlds.