First of all when a person dies, there are possible duplicate entries. This is normal. Each who creates an entry of the same living person gets a new ID number. This means that if several people enter a person as living in the FamilySearch.org Family Tree, there will be an equal number of duplicate copies of that individual with the each entries own ID number.
When a person dies, if the person was a member of The Church of Jesus Christ of Latter-day Saints, FamilySearch waits for an entry from a Ward Clerk reporting that the person is deceased. If you find an entry for a person who is deceased, you can mark it as deceased, but you may not be marking all of the entries for that deceased person. If the deceased person was not a member, the living entry remains online until someone marks it deceased.
Other relatives of the deceased person may have created a number of duplicate entries, as I mentioned above. When that occurs, that still leaves a number of duplicate entries that people have entered showing the person is living. In each of those cases, all that needs to be done is to mark them deceased and explain the reason for making the change.
It is more complicated if a living entry has been marked as deceased incorrectly. If you were the one that marked the person incorrectly, you can make the change simply by marking the person as living. If someone else happens to mark your living person as deceased, it is a little bit more complicated. Here is the explanation from FamilySearch's AI Assistant:
To change a person from deceased to living in Family Tree, go to the person page, click Details, then in the Vitals section next to the death date select Edit. Choose Living, enter how you know the person is still alive, and save.
If you are not the only contributor, also submit an explanation with your relationship to the person and how you know they are alive. A request goes to FamilySearch Support for review.
If you are the only contributor, saving changes the record to Living and it becomes visible only to you.
For more information see the following FamilySearch.org article: How do I change the status from deceased to living in Family Tree?

















