I found this man's post in the doenetwork's guestbook. He claims to be Douglas Charles Chapman who was abducted from Alfred, ME in 1971. His story seems credible enough, and if it really is him I'm wondering why LE isn't doing more?
Here's a link to his webpage...
http://www.angelfire.com/ult/lostboy/1stgradeb.html
And a link to Douglass Chapman's doenetwork page...
http://www.doenetwork.us/cases/125dmme.html
Maybe someone here can help him?