Asserted, not described

Between November 1896 and spring 1897, over a thousand press accounts described large cigar-shaped 'airships' with searchlights and propellers crossing the U.S. sky, years before any aircraft could do such a thing. The wave began in Sacramento and spread east; in Aurora (Texas) a newspaper even reported the 'crash' of one with a pilot 'not of this world'.

The so-called 'other Roswell': the claim that in March 1948 a 99-foot saucer with 16 humanoid bodies crashed near Aztec, New Mexico, and was recovered by the military. Journalist Frank Scully published it in 'Behind the Flying Saucers' (1950). In the mid-1950s it was exposed as a hoax by two con men, Silas Newton and Leo GeBauer.

On November 14, 1963, the U.S. embassy in Rio de Janeiro asked its consul in Salvador to confirm a press report: a 'manned metal balloon' had allegedly crashed near Conde, Bahia, with a dead crewman wearing a strange suit and a four-meter-deep crater. Six days later, a second diplomatic cable —now declassified via PURSUE 2026— closed the case: Consul Harold Midkiff reported the story was 'apparently fabricated in Rio,' that no one in the area had seen anything, and that Brazil's Ministry of Aeronautics categorically denied it. A local newspaper headlined its story 'The Airship That Wasn't There.'

A document declassified in PURSUE's fourth drop (July 10, 2026) bundles two unrelated pieces of FBI correspondence, connected only by topic: a 1967 note summarizing, in one paragraph, an eleven-year-old child's report of a 'weird' noise and a 'flash of light'; and a 1974 exchange of letters between the FBI and Larry W. Bryant —a pro-disclosure UFO activist who would later sue the Pentagon— about an alleged 1954 sighting of an 'occupied UFO.' The Bureau's reply to Bryant is the central piece: it has no record of the event he's asking about, and by 1974 it no longer collects UFO sighting information at all.

Geological engineer Phil Schneider claimed in lectures (1995–96) to have survived a 1979 firefight against non-human beings in an underground base beneath Dulce (New Mexico), with ~60 dead. He displayed scars as 'proof'. His credentials were never verified and there is no documentary evidence of the base or the incident. He died in 1996, officially by suicide, with forensic inconsistencies that fed suspicions of murder. He is the archetype of the uncorroborated underground-base (DUMB) 'insider witness'.

It was claimed that on 7 May 1989 South African Air Force Mirage fighters shot down an unidentified object that fell in the Kalahari Desert, with the craft and two occupants recovered. The whole case rests on documents supplied by James van Greunen, examined and found fraudulent; he himself admitted faking details. Researcher Cynthia Hind dismantled it in 'Anatomy of a hoax'. It is one of the most solidly debunked 'crash retrieval' cases.

A U.S. State Department diplomatic cable (document #059UAP00013, filed September 16, 2003) records that, on September 12, 2003, the Mexican Congress heard testimony on unidentified aerial phenomena as part of debate over a proposed 'Aerial Space Protection Law'. According to the cable, presenters showed 'two alleged alien corpses' and videos of Mexican pilots' encounters. The document itself notes the disagreement over the validity of the purported corpses, takes no analytical position, and the law did not pass. The cable resurfaced declassified in the first release of the PURSUE system (May 8, 2026): it is a diplomatic record of the event, not a verification of the claims, and it precedes Jaime Maussan's 2023 hearing by twenty years.