Marilyn, I have some tin-types but have no idea who or where they are or are from. The ones that have names of photographers all seem to be regular photgraphs, for all I know about photographic history which is very little. They mostly have scenery of widely varying subject matter and many are merely head and shoulder shots. No twiggy benches on my photos, sorry. Thanks for responding, and thanks to all who have helped in this question. Have a great Christmas all, Gary Plano, TX