Hi there,
Edward's wife is a relation of mine. I believe she died in Feb 1871. She was then living at Pontrobert Hirnant. She was buried at Hirnant 4 Feb. Edward was buried 22 Jan 1859 at Hirnant. They were married 26 Aug 1814 at Hirnant. The PR shows that Edward came from Pennant i.e. part of Penybont/Llanrhaeadr YM. You really need to get a copy of marriage certificate to ascertain Edward's arents names.
Happy to help if you need any further info, Cheers

Merle