I can't really explain this lot in depth as I bought it from a person who collects ephemera and the research has not been done on either of these soldiers.  There are tons of letters and at one time the person who first found these separated them by year.  I haven't read any of these as I just don't have the time.  There are probably around 550 letters and other ephemera like holdiay cards, etc.  Cool lot that will be interesting to go through.  Too much for me.