Seeking vet friend from long ago

[uppityperson]

When I was in college in the early to mid-70's, I hung out with a group of vets, some Viet Nam, some other places but the same time period. I would love to find a couple of them as they were very important to me, but then I moved across the country. I do not know where to start. A basic search of their names with Viet Nam veteran doesn't give me much.

Search shows me a lot of sites, but many seem basic people search with payments required. Is there a site you'd recommend or a way to search otherwise?

Thank you.