In situations like this solutions typically query all records to avoid multiple queries and then stitch data objects together to provide the desired format. Then you can develop simple find() methods on those objects to further filter the results (e.g. Using array functions).
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.