This gets odder yet.  I returned to find one of my very elderly women had died.  They buried her, and a tombstone came up, as it should.  I checked the other tombstones, to see if they were still blank. The third tombstone was identified as the woman's who had just passed away.  The roster says 3 people are listed.  However, I now have 7 headstones, and one woman has two of them.  She has the third and seventh tombstones marked as her resting place(s?).  I have a feeling this is going to be very confusing for awhile.