I Am Looking for William and Mary Potts B 1791 and Abt 1800 D 1888 and

I am looking for William and Mary Potts, b 1791 and abt 1800, d 1888 and 1883 in Drumnot, Ireland. I believe that he was born in Rathgar, Scotland. They had a son Robert, b 1829, d 1909 in Drumnot, Ireland. There were probably more children but I have no more names. I think that Williams parents were John Potts and Margaret Doran.