Simply documenting people's story has value. I know someone who wrote an autobiography that was basically a chronological description of their life. It wasn't an enjoyable read however it was a largely unvarnished description of their long and varied life.

A large library happily took some copies to go into their archives. First hand descriptions of events are hard to come by. Chances are it will sit unread in their archives for decades but it could one day be interesting source material for someone.