This is interesting, I am not particular a fan of the WW2 setting, but I am not really opposed to it. My thought for a character would be someone who has adopted neo-pagan believes of natural worship with the thought process, "Humans are screwing everything up with there senseless fighting." The idea for his background would he be a child of one of original members of the Rutherford Program was introduced to paganism through the program and converted, and thus taught his kid to follow to his new believes. I am not sure what the minimum age is, but with the dates given and the setting, I image he would probably be 21 or 22.