Walter Haut had an affidavit released after his death claiming it was a cover, that the first report was a cover because too many people knew about it already. So they did they to divert people from the real or better site. It's been a couple years since I talked to him about it, but I know someone who was there when he taped it, he says the tape is real. Obviously he can't confirm if the information is true as he wasn't quite born in 1947.
That person's name is Clifford E. Stone, and he lives here in Roswell, as well. He gives lectures every year at the local festival. He (Stone) also claims to have been involved in Project Moondust and Operation Blue Fly, a member of a secret team that recovered stuff that fell from space.
There are many results for Walter Haut Affidavit on google.
While I can't prove to you that any of this is true, nor would I try. Over the years I have gotten many hundreds of sightings of sighting reports, and some abductions stories as well. Personally I think there is something to all of those UFO sightings, I don't pretend to have the answers though. UFO doesn't have to mean Alien Piloted Spaceship.
I've read some pretty intriguing stories from credible enough sounding people.
That's just my take, and I wouldn't force that opinion on others.