A genealogical and gravestone mystery

St David, Capel Bangor, Ceredigion, Wales
(Click on an image for a larger version)
The entire site seemed very uneven and there was a massive and steep drop at the far side.
The name, age and date of death all appear to have been modified. What I would
like to know is why? The first name has been very neatly removed but with
no sign that a replacement piece of slate was ever inserted but the other
details do look as if replacement engravings were created.

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