Hi, I have a colleague who is studying botanical exploration in Latin America and particularly the work of Everard im Thurn, a British author/explorer/botanist/anthropologist, and it would appear photographer - see http://en.wikipedia.org/wiki/Everard_F._im_Thurn
On a major expedition he was accompanied by a photographer from "Norton Brothers". Three images are in the collection at Cambridge and there is a short account of the studio at http://www.lib.cam.ac.uk/rcs_photographers/entry.php?id=353
But it would appear that very little information is available about the Norton Brothers studio. I appreciate that this is a forum for British photographers, but I am making the assumption that this studio would have started in the UK.
Can anyone here help with additional sources, or provide advice or where I can research this further?
Many thanks, James