The majority of the reports are from individuals writing or calling the FBI to report sightings, but there are also documents containing information on actual findings.
According to the reports, several crashed UFOs have been recovered by the U.S. government. Of note, there appear to be thousands of documents on this, many of which are stuffed into large PDF files, so not every one of them was read for this article. But so far, it seems the recovery of 3 UFOs and 9 alien bodies in 1950 is the strongest.
There is another FBI Roswell document from 1947 that states a “an object purporting to be a flying saucer was re covered [sic] near Roswell, New Mexico.” It adds that the 20 foot hexagonal disk was was suspended from a balloon by a cable that “resembles a high altitude weather ballon with a radar reflector.” It adds, however, that “telephonic conversation between their officer and Wright Field had not (information censored) borne this belief.”
There is also a massive set of files simply titled “UFO” that are divided into 16 parts. They typically contain between 50 and 150 documents. Going by a scan through Part 14 and Part 16, it seems nearly all of them are reports of sightings or the FBI receiving images of the UFOs.
Sources range from high-profile military sightings to people dubbed possibly “delusional.” Some of the incidents included the Air Force sending fighter interception after them (page 71 of UFO Part 16.)
An intro to the 169 files of Part 16, addressed to the FBI director in 1949, states:
I am attaching a hereto a number of (unreadable) of reports being received in great number in this officer concerning the so-called flying disks or unnatural phenomena being frequently observed around Camp Hood, Texas. This is, of course, a primary concern of the Air Corps. Consequently, this officer is following the practice of reviewing these data and then destroying them in the event there appears to be nothing of FBI interest in them. It is pointed out that the filing of these would result in the rapid accumulation of very bulky files.
Unless the Bureau believes this is unwise, this practice will continue.
It is also interesting to note that there were government projects dedicated to investigating UFOs. The U.S. Air Force had a project dedicated to investigating UFOs, dubbed “Project Blue Book.”
According to the file, Project Blue Book was terminated on December 17, 1969, and all its files were handed over to the National Archives and Records Service.
Interestingly, it states that after investigating UFOs since 1948, “the conclusions of Project Blue Book are:
- no UFO reported, investigated, and evaluated by the Air Force has ever given any indication of threat to our national security;
- there has been no evidence submitted to or discovered by the Air Force that sightings categorized as “unidentified” represent technological developments or principles beyond the range of present day scientific knowledge; and
- there has been no evidence that sightings categorized as “unidentified” are extraterrestrial vehicles.
(The above is from page 3 of the Project Blue Book file.) It should be noted, however, that Project Blue Book was an Air Force program, according to the report. It is not made clear whether the FBI shared its information with it.
There are a few others document collections, including three files from the National Investigations Committee on Arial Phenomena.