Hi Leon47,
24 years apart, I think they might be family or computer fault.
Don’t think that they can use someone’s plot that soon.
You can get in touch with the cemetery’s office.
The old papers can be search for free in the Newspapers Archives
just around the corner from the Belfast Central Library.
It’s best to check times of opening also take a memory stick for
what you find.
I have Shropshire Archives Library here and use them for free
Find my past, British Newspapers, Ancestry.
When I use this archives, I logged into the Newspapers set up
my account “ free” at home.
Then log in down there and save anything I find, at home you
open the account and go to saved.
Ancestry finds can be sent to any Wi-Fi address.
Best of luck, let us know if they are family.
Billy.