Not that I know, and I've done some extensive study on him and I never found anything pointing to that fact. He did get into Spiritualism, and I'd say that is worse. Warning to everybody, Spiritualism is really bad!
It could ruin your life, stay away! Fortunately you do not have to worry about getting Spiritualism influence by the Sherlock Holmes books, Conon Doyle became Spiritualism late in life and he had written most of the stories already, so he could not change the views of his characters. Well, best wishes, RNL.
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.