My current photo teacher has the knowledge to make daguerrotypes, however I don't think he actively does; he seems to be more of an author at the moment than a photographer. His name's David Carroll. I think he made a number of daguerrotypes as props for some horror movie a few years ago. (iirc he said that they wanted a scene where a bunch of the pictures got destroyed, and, obviously, he wouldn't sacrifice "authentic" daguerrotypes for a movie, so he simply made a set of new ones.)