I just recently stored luggage in Montparnasse station in Paris and found that the useful name for this storage area is something like 'consignee.' One place to check for this information might be the sncf website (it is in French but there might be an English option... more.
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.