In 1851 Mary A. Blewett, aged 38, born in St. Agness, and husband John Blewett, aged 38, born in Camborne, coal porter, were living in Carn Crows, St. Ives. With them were children (born in St. Ives) Emily (11), scholar, John (9), scholar, William H. (6), scholar, Cyrus (2?), Mary R. (1), Elizabeth (4 months), mother-in-law Constance Penrose (71), widow, of Illogan, lodger.
In 1861 Mary Blewet was widowed and living in Niels Row St. Ives. At home were children (born in St. Ives): John (19), mariner, William H. (16), Cyrus (13), Mary (10), and Elizabeth (9).