So if you have historical family photos and someone who remembers who is in them and what the occasion was, do write it down! One day you'll probably want to know; it's family history... You have a normal feeling for a moment, then it passes. --More--
The trouble is that sometimes the "who" doesn't even ring a bell to the matriarch (95 years old mother)... Who jokingly evacuates the problem by saying it must have been her/his lover/mistress... Which usually sends a chilling return glance from that part of the family :-)
Those were the times... :-) "What can I do, What can I write, Against the fall of Night". A.E. Housman