Many thanks to Stan, Sue and Adam for their very prompt help with my query re the photo of Sarah Thirlwell taken by Thirlwell Ltd of Bridge Street of Stockton on Tees, as well as Darlington and Hartlepool. All these places are some distance from Southwick, Sunderland where Sarah lived and I wonder whether she would travel to have her portrait taken. Is it possible to find the christian name of the Thirlwell who owned this business in the 1850s? Would a shop be recorded in the 1851 census if no one lived on the premises? What a wonderful website Stockton on Tees has. Helen Christchurch New Zealand