A # is usually a tag, so whatever the picture is of you can search that tag if you have a tumblr , I don't know if you'll be able to find it though because it was a long time ago, you can't search tags because you don't have an account, and you might not think of the same tags, if there even were any :( you could go to the blog you saw it on and click to see their archive and then scroll through it if you don't mind scrolling through a LOT of pictures... as a last effort try searching google by describing the picture good luck.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.