Hi Danny.
Could this be the one?
Bontnewydd, Llanwnda, Caernarvonshire.
Source Citation: Class: HO107; Piece: 2515; Folio: 558; Page: 12
Ebenezer Jones 50 yrs Quarryman b. Llanwnda
Margaret Jones 43 yrs b. Llanwnda
John Jones 11 yrs ‘’
Margaret Jones 8 yrs ‘’
William Jones 6 yrs ‘’