This isnt the 1920’s. Most people can be found if you really make an effort. It’s not that hard to get on the internet and find most people.
But I have one friend from high school and early 20’s who seems to have completely dropped off the map. No one that I know knows what happened to him.
Its a mystery wrapped inside a riddle inside an enigma. 
Anywho, just wondering if you all knew a person like that, who just seemed to vanish.
I had a sever alcoholic friend that I tried to find a few years ago…last she was seen was on her facebook account like in 2012…I’m sure she died…she drank horribly her and her husband.
I was really entranced with a girl when I was 15. it was limerence really. I was completely obsessed with her.
but now 20+ years later I know nothing of her. we kept in touch for a long time but now I haven’t heard of her for years. I have no idea what she does. I hope she is ok and happy.
and my ex best friend. I feel bad for her really. she had very big problems with her mental health like me but something went wrong with her that she was not able to “get to the other side” of her problems. she got into drugs and criminal life. she slipped away from me. the last I heard was that she was convicted and moved far away. I truely wish she is doing better now. I miss her. we used to be very close.
It’s me. I’m that person to all my old friends, unfortunately 
I dropped off the face of the earth
But as you say you can find clues if you just look
As far as I can tell I am not the only person I was doing a favour