A good thing to remember, and I always encourage everyone, to date and identify all the pictures that you make today. At the time it may not seem important, but years later it will be.
The picture may travel down through time, well-kept and preserved, but the little faces of a different time will have no names, nor no history to go with them.
Case in point, this wonderful school group of many years ago. What school were they attending and who were all these students.? We might even know their families if we only knew who they were.