I'm damned curious about this photo. Was it just some 19th century art student's pretentiousness, the early version of pretty-women-wearing-gas-masks or unsmiling-children-near-abandoned-playgrounds? Or was there genuine emotion behind it? Grief? Shame? Was the photographer capturing, creating, or both?
The Unseen Eye: Photographs from the Unconscious
by W.M. Hunt
but seen at Black and WTF, one of the best tumblrs out there
if you like this sort of thing