Hi Eleri, In the 1841 census of Llanllyfni the following are listed living in Ty Newydd: Catherine Morris, 30, born in county Richard Morris, 14, quarryman, born in county Robert Morris, 12, born in county Catherine Morris, 9, born in county Gaynor Morris, 8, born in county It looks as if your Catherine was either widowed at a young age or was not married. To find this out you would need to see the Parish Records at Llanllyfni or copies at the Caernarfon Record Office. Regards, Arfor (Criccieth, North Wales)