Assuming that you're sending the card to a male who has been both ordained by an organized religious body and earned a doctorate in any field of study but usually in this case, a Doctor of Divinity (DD), "Reverend Doctor _" (Rev. Dr. _) is exactly correct.
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.