Lebanon, New Hampshire UFO Sighting (September 17, 1947) — FBI Files
U.S. government investigators recorded a sighting of two silent, saucer-shaped objects in Lebanon, New Hampshire, during the summer of 1947.
Background
On September 17, 1947, in Lebanon, New Hampshire, U.S. government investigators recorded an unidentified-object incident later released to the public on May 8, 2026, as part of the Presidential Unsealing and Reporting System for UAP Encounters (PURSUE). This sighting occurred during a period of intense public and governmental scrutiny regarding aerial phenomena. The incident is one of the first wave of “flying saucer” reports that swept the United States following the Kenneth Arnold sighting of June 1947 and the Roswell incident of July 1947. During this era, the term “flying saucer” had entered the common lexicon, fueled by a series of high-profile reports that suggested the presence of craft with flight characteristics far exceeding known aeronautical capabilities.
The administrative handling of the Lebanon report reflects the bureaucratic landscape of the mid-twentieth century. The case was filed with the Federal Bureau of Investigation, whose Knoxville, Albuquerque, Los Angeles, and other field offices routed UFO reports to headquarters under the Bureau’s standing protocols for the protection of vital installations. At the time, the FBI’s interest in such reports was primarily centered on national security and the potential for foreign espionage or the presence of unauthorized aircraft near sensitive military or industrial sites. The systematic collection of these reports by various field offices demonstrates a coordinated, albeit compartmentalized, effort to monitor the airspace for any anomalies that might threaten domestic stability or intelligence assets.
What the document records
The primary account preserved in the official documentation describes an observation made by the superintendent of schools. While engaged in the routine activity of watching bees, the superintendent observed two distinct objects in the sky. The first was described as a smaller, white, ball-shaped object. This object was followed closely by a second, larger, saucer-shaped object. The movement of these entities was characterized by high speed and a lack of audible engine noise. They traveled rapidly and silently from the east, maintaining a constant distance and angle relative to each other. This synchronized flight pattern was sustained for a duration of over one minute.
While the visual details of the objects’ flight path and formation are documented, the released document does not specify the total number of witnesses present during the event. The focus of the report remains on the physical characteristics and the trajectory of the objects as observed by the school official.
Type of case
The witnesses described the objects as being disc- or saucer-shaped, a description consistent with the prevailing nomenclature of the 1947 phenomenon. This specific morphology became the standard descriptor for unidentified aerial phenomena during the late 1940s, often implying a lack of visible wings or traditional aerodynamic surfaces.
Status
All records released under the PURSUE program are designated unresolved by the All-domain Anomaly Resolution Office (AARO) by default. The federal government has not concluded that the events were anomalous, has not concluded that they were conventional, and has not ruled out either possibility. The lack of a definitive conclusion is standard for historical files of this nature, as the technical means to verify the identity of mid-century sightings are often unavailable.
Conventional candidates for sightings of this period include experimental aircraft, weather balloons, particularly the Project Mogul series developed in the late 1940s to detect Soviet nuclear tests, and atmospheric optical phenomena such as sundogs and lenticular clouds. Additionally, astronomical objects including Venus, the Moon, and meteors near the horizon have frequently been identified as the source of similar reports. The Lebanon case remains an unverified entry in the broader history of post-war aerial anomalies.