A few years ago my brother got a letter. It was from an old friend, now living in N. California(can't remember the city now), from when we lived in L.A. in the 60's. Turns out the brother of a buddy of mine moved there, ran into this guy at a church meeting, and got to talking and just getting aquainted. My friends brother introduced himself, he having the same last name as I do. So this other guy starts with "I used to have a friend in L.A. when I was a kid with that last name. Any relation?" And so it went from there. So he contatcts his brother (my friend), gets my brother's mailing address, ect, ect.
Yeah, small world!