At the time of the alleged Roswell crash in 1947, Arthur Exon was a Lt. Colonel stationed at Wright Field (Wright-Patterson A.F.B. in Dayton, Ohio), the location where the alleged debris and bodies from the crash were allegedly shipped. In the future, Exon would go on to become base commander of Wright-Patterson A.F.B.
According to Exon, the Roswell crash actually happened and that though the debris was first assumed to have come from a Russian craft, it soon become extremely clear that the material was not anything made by man. It should be stressed that Exon never claimed to have direct, first-hand knowledge of the event save for the fact that he flew over the reported crash sites. Instead, Exon's information comes second-hand from individuals who were directly involved and from the benefits of holding a high-position later in life.
Among claims made by Exon was of being told that a special project was created at Wright Field as soon as the technicians realized that the material was other-worldly and that there were two crash sites, the first site being on the Foster ranch and consisted mostly of debris while the second site had more intact structures of the craft as well as bodies. Additionally, Exon claimed that while he worked at the Pentagon in the late 50s and 60s that he was made aware that there was a small group of men that was handling the UFO situation. Exon dubbed this group, "The Unholy 13", though it should be stressed this is not an official designation.
During a 1994 interview with a Congressional Staff member for the GAO investigation of Roswell, Exon reported that he feared he was being monitored for coming forward with what he knew.
BRIGADIER GENERAL ARTHUR ERNEST EXON
Brig. Gen. Arthur E. Exon
Witness To Roswell: Unmasking The Government's Biggest Cover-Up