You never know where you will find treasure.
This is an old picture of people in my home town watching a parade. Someone started a page "You might be from A____ if" on facebook. Then someone posted this picture. The man in the white shirt in the middle of the picture, died in a home fire years ago. I'm sure all their pictures. etc. were lost. I uploaded this picture to Snapfish and took two copies to his son... one for him... one for his sister.
I value old pictures. I have been known to rescue some of people I don't know. There are a couple of blogs I follow who show old photos... hoping to find some one (family) who will want the pictures.
I once visited a friend and we were going through some old pictures and I saw one that pictured my granddaddy and another man. I asked her about the picture and she said "I know this one is my uncle, but I don't know who the other person is." I told her I was sure it was my granddaddy and I wanted a copy. She let me make copies and when I asked my dad if that was granddaddy, he said, "it sure is, but I've never seen this picture before."
As I said, you never know where you will find treasure."