Thanks so much for this information. Ancestry has provided me with a wealth of information on this family line both in England and Australia via public family trees and electoral rolls & English census. There is evidence of watchmaking and jewellers in the family line and I have contacted one of the private member tree contacts for a bit more detail including a photo of the shop in Talbot. A brother of the Charles you mentioned above - James Benjamin ("Junior") married a Harriett Blanch Smith. I know a connection between the 2 Smiths may be a long shot but I have asked the question.
Just love this red herring!