I just heard from another old friend. This time it was Glen Gordon, who was part of the original Gunters back in our college days at Georgia Tech. I had heard from Glen briefly a few years ago, but then he suddenly disappeared again.
Now if my pre-college friends and I could just get in touch with Marlowe Daley (last known to be leaving Utah for some place in the New England area, possibly Boston?), that would take care of most of my MIAs.