I had an email from Gemma (Gemma81 at ntlworld.com) February 2018, if you recognize any of the people could you contact her please.
"Assuming this is from our family tree we think it may be related to the Lewin/Addison branch of our tree as they were in Leicester back in the early 1800's and
some of the photographers have locations in Leicester and not Northampton. Having said that, the Dickens branch of our tree had musicians that toured the
country, so there's a possibility some may be pictures of them. Either way we are just making assumptions and have no idea who these people are for certain,
so any help would be most gratefully received."