A while back I did a porter on my town of SV which was too glitchy to play anymore. Anyway, during this move everything went well, the move reported successful and I've been playing it now for a few weeks.
While setting up the town I managed to find all but one of the tombstones of my circle of sims I play and put them in my new graveyard.

Anyway, cut to recently I did a town-wide "object stats" to sort out my sims inventories and remove the load of extra crap they all seem to carry and I saw Zane Ashville's monument. It is located in someones personal inventory. But I checked with all his family members and even did an individual search of their lots to see what family member has the tombstone. I had no luck. Yet it still displays when I do a town-wide search and no it's not in either of my two mausoleums. I did an "object info" on the tombstone, but all I got was some gobblygook that made no sense to me. Here's what I found. Maybe it will mean something to someone else??? If not, what can I do to get a hold of that tombstone and place it next to his wife?

Object
Name: Remains
Type:Sims3.Gameplay.Object.Urnsone.human
Obj id: 0x5da009cdOffcf40
Position: -20000.0000, -200000.0000,-20000.0000)
Room id: 0
Level:0
Flags: IsUsedInInventory
DoesNotStack
Lot: Sims3.Gameplay.Core.WorldLot
Lot Name:
Address:
IsValid: True
World: SunsetValley
OnVacation: False
Season: Summer

Okay, never mind. I was too late to delete this post, but I finally figured out I can "add object to inventory" from City Hall and it put the tombstone into my actives family inventory.