Unfortunately, you may never get over the urge to cry or at least get "teary". My Dad has been gone since 1977 and my mother for 5 years now, and many things still remind me vividly of them and bring tears to my eyes. But I can only advise you to "take a deep breath" and think instead of the HAPPY memories that you have of your close family member and be glad that you can still dwell on good times with that person and think about many family events that were pleasurable.
Our dear family members continue to "live" in our memories and our talking to others about what we remember about them.
We all grieve differently, but to still be crying after four years seems a bit extreme. I lost my own mother many years ago, and I was almost relieved when she passed on since she didn't have to suffer with her illness anymore. I didn't cry much, but sure did on those first few Mother's Days.
Sometimes it's not the loss that disturbs us so much, but the unresolved issues we may have had with the person before they died. Recognizing those issues and learning to overcome them can be a big part of the recovery process. Excuse me for plugging my own work, but here is an article I wrote on grief recovery a few years ago, and it may be of some help to those who are struggling with grief over the death of a loved one.
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.