In the 1861 census there is a Jane Prichard (sic) aged 63, born Llanrug living with husband Henry aged 68 born Llanllechid, and visitor John Roberts aged 12. Address is Didfa, Penybont, Llanrug.
But I cannot see this couple in 1871 so could have died or been missed off census or I just cannot find them.
Tressle