Hello HiFly. Only one gravestone for Powton.
Joseph Powton, died February/10/1889 aged 9 years.
There are another two deaths for Powton(without a gravestone)
John Powton, died 14/March/1897 aged 2 years, Stanley, Crook.
Alexander Powton, died 24/November/1865 aged 2 years, Stanley, Crook.
Sorry no names of parents. I has a look at the other catholic records to see if there were any baptisms or marriage records but there were none for Powton or the variation of Powton.
Adam