Carl,
What else do you know about him? I knew a Dave Garner when I was living in Michigan but have no idea if it's the one you are looking for. He's probably closer to my age (50) and am not sure if he was in Vietnam or not. He never spoke about it. If the one you are looking for is from that area, let me know and I'll call my son, Matt. You see, Matt was dating his daughter for awhile and got to be really close to Dave - almost like a second father - so Dave may have talked to Matt about things that he would not have mentioned to me.
Gail