M.I.s in Dolgellau

[ElRow]

I wonder if anyone could help me find the burial place of Owen and Mary Pugh, Tanygader, Dolgellau. They lived from 1841 - 1926.
I really have thought I'd found them after a search a few years ago. I thought I'd found them in the town cemetery next to Ysgol y Gader, but when I went back there a week or so ago it seems that it was the grave of their grandson, also called Owen Pugh and his sister Mary Elizabeth. they lived from 1910 - 1980 or so. They also lived in Tanygader.
Owen and Mary senior were married in the New Independent chapel so I presume they were chapel people. Owen died first on 11.02.1926
Thank you
Eleri