Yes, at the ranger station and The Whitney Portal Store in Lone Pine or at the Portal for ~$2.00/day. If you are going to be using a canister in the future the Portal Store offers the best price for one anywhere, $49.75 + tax. 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.