This is a total guess, but is this Francis with his family in the 1881 census?
Living at 6, Wellington Street, Clerkenwell, Holborn, London & Middlesex
Parents Fancesco, wire worker, born 1854 in Italy, Sarah born 1858 in Islington and brother Charles born 1879 in Clerkenwell.
Francis is born 1877 Clerkenwell.