I think I may have found them.
1861 England Census
Francis Porter Head b 1806 London, Cork Cutter
Sarah Porter Wife b 1808 London,
Jane Porter Daughter b 1846 London,
Emily Porter Daughter b 1852 London
George Porter Son b 1854 b Essex
Street Address looks like: 4 Duke Street
parish of St Bartholomew the Great Middlesex
RG9/217/39 p 57 schedule 403
ED 8 RD West London SD West London North