A lot of the success anyone has in a search will depend on how many unique pieces of information you have about your subject. Generally speaking, some things that help describe a person are a middle initial, an email address, a social security number, a drivers' license or the license plate of a vehicle you know your subject owns. Each one of these is unique to the individual you are trying to find, and they help to eliminate the others - Sherlock Holmes described his famous method of deduction this way: "When you have eliminated the impossible, whatever remains, however improbable, must be true."
Unique identifiers help you eliminate the impossible. 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.