Hello David. Here is the one inscription that I have:-
I memory of Jacob Wilson of Alston House, born July 10th 1770, died July 7th 1858.
Elizabeth, wife of the above, born ?? 25th 1776, died December 23rd 1857.
Frances, the daughter of Jacob and Elizabeth Wilson of Alston House, who departed this life on the 6th day of November 1810 aged 15 months.
Also Hannah their daughter, who departed this life 23rd day of May 1822.
The bottom part where the date and possibly the age has been damaged by weather and time.
Adam