Thank you for your reply. Were any of the other family photographers active in the 19th century? I am not aware of any other's bearing the Boake name although there was a Matthew Boak active in Yorkshire. I have quite a lot of research notes on BCB that I will assemble into a biography for a book I am writing on the history of the carte de visite photograph in Australia but it will be some time before I return to them as I have other research projects on the boil at present. Should you wish to switch to regular email I will keep in touch.