I have a postcard of the above picture on my wall, when my girlfriend first saw it, she declared:
"Oh this is the famous train crash in Dublin, Harcourt street"
No it is not, in the photograph you can read 'Gare de l'Ouest', and this train crash happened in 1985 in Paris, France.
There was indeed a train crash in Dublin, in 1900. And this is the picture: