CASE FILE US-1950-001

McMinnville (Trent) Farm Photographs

11 May 1950 · Trent farm, near McMinnville, Oregon · Location generalized (Approximate) · US

Official finding

Investigated after the fact as Condon Report Case 46 (1969); the assigned photo-analyst concluded the photographic evidence was "consistent with" a genuine unidentified disk-shaped object but did not exclude the possibility of a fabricated model.

Condon Committee (University of Colorado UFO Project, under USAF contract)

Scientific Study of Unidentified Flying Objects (Condon Report)

Anomaly Index assessment

Unresolved: insufficient data

The entire evidentiary record consists of two photographs from a single family, with no negatives examined by an independent party until weeks after the claimed event and no other witnesses, sensor data, or contemporaneous notes. Independent photogrammetric analyses of the same two images have reached opposite conclusions about scale, distance, and the presence of a suspension wire, which shows the images themselves cannot settle the question. Because a single, delayed, unverified photographic channel cannot support a reliable identification in either direction, the case remains unresolved rather than identified or likely identified.

Anomaly Index assessments are editorial evaluations of the public record. They are not official government determinations.

Unresolved means that the available evidence does not support a reliable identification. It does not imply extraterrestrial or nonhuman origin.

What was reported

Paul Trent and Evelyn Trent reported that, in the early evening of May 11, 1950, Evelyn was walking across their farmyard southwest of McMinnville, Oregon, when she saw a slow-moving, metallic, disk-shaped object approaching from the northeast. She called for Paul, who came outside with a box camera and took two photographs before the object, in the couple's account, accelerated away to the west. The Trents said they did not immediately publicize the photographs. According to later interviews, the negatives were developed locally and shown informally to a few acquaintances before Paul Trent mentioned the story to a bank employee on June 7, 1950, nearly a month later. A local newspaper, the McMinnville Telephone-Register, then published the photographs, and Life magazine reprinted cropped versions nationally on June 26, 1950, with a photograph of Trent and his camera.

What is verified

Two photographs attributed to Paul Trent were published locally in 1950 and nationally by Life magazine on June 26, 1950.[1]
The original negatives were provided to the Condon Committee at the University of Colorado for analysis and were examined and held by the study until 1969, after which they were returned to the Trent family.[1]
The Condon Report's photo-analysis chapter includes the case as Case 46 and records the analyst's conclusion that the geometric, psychometric, and photometric factors examined were "consistent with" the claim of a genuine unidentified object, while explicitly stating this did not rule out a fabrication.[1]
Independent photogrammetric re-analysis published in 2015 revisited shadow and lighting geometry in the photographs and reported findings consistent with a small suspended model rather than a distant large object.[2]

Evidence ledger

Evidence items documenting this case
Type	Description	Originality	Source organization	Released	Raw or edited	Metadata	Provenance	Known limitations	Source
Photograph	Two black-and-white photographs on 620 roll film, showing a disk-shaped object against sky, wires, and outbuildings in the same frame, said to have been taken seconds apart.	Original	Trent family; negatives later held by the University of Colorado UFO Project	1950 (publication); negatives examined 1967-1969	Unknown	Partial	Negatives were not examined by any outside party until weeks after the claimed event, and no contemporaneous log, camera-settings record, or witness beyond the Trent household exists for the moment of exposure.	With only two images from one uncorroborated observation and no chain of custody before local publication, the photographs cannot by themselves establish scale, distance, or the presence of a rigging device with confidence in either direction.	[1]
Official document	Condon Report Case 46, containing the Committee's photo-analyst narrative, measurements, and stated caveats about the possibility of a suspended model.	Original	University of Colorado UFO Project	1969	Raw	Yes	Published as part of the USAF-contracted "Scientific Study of Unidentified Flying Objects."	The analysis is a single expert's photogrammetric opinion; it was not independently replicated at the time, and the analyst himself later revisited his conclusions after outside critiques of his method.	[1]

Proposed explanations

Genuine unidentified disk-shaped object

Proposed by William K. Hartmann, photo-analyst for the Condon Committee (1967)

Supporting: Hartmann's geometric and photometric analysis found the object's apparent brightness, lack of visible support structure, and absence of rotation consistent with a solid object at a distance of roughly 1.3 km, and found no evidence of negative tampering.

Contradicting: Hartmann's own write-up stated the evidence did not positively rule out fabrication. Later photogrammetric work (Sheaffer, 1975; IPACO, 2013) argued the same images are also consistent with a small model a few meters from the camera, hung from the overhead wire visible in frame, and Hartmann later said he no longer held his original assessment with confidence once that critique was put to him.

Disputed

Small model suspended from the overhead wire

Proposed by Robert Sheaffer (1975 reanalysis); Antoine Cousyn, Francois Louange, and Geoff Quick of IPACO (2013 digital photogrammetric study)

Supporting: The IPACO study reported detecting a faint linear feature above the object consistent with a suspension thread, and found the visible wire in the photographs sagged slightly more in the area directly above the object compared with the Life magazine print, which the authors interpreted as consistent with the added weight of a hanging model roughly 30 centimeters across.

Contradicting: The claimed suspension thread is at the resolution limit of the source images, and no physical model, string, or corroborating witness statement about a hoax has ever surfaced from the Trent family or their acquaintances.

Plausible

Why this classification?

This case is classified as Unresolved: insufficient data because the entire public record rests on two photographs from a single, uncorroborated family observation, examined only after a month-long delay with no chain of custody for the negatives before local publication. Independent photogrammetric analyses of the same two images, performed decades apart with different methods, have reached opposing conclusions about whether the object was distant and large or small and nearby, which demonstrates the available evidence cannot adjudicate between a genuine unidentified object and a staged photograph. Unresolved means the evidence does not support a reliable identification in either direction; it does not imply extraterrestrial or nonhuman origin.

What remains unknown

Whether a suspension wire or thread is actually present in the frame, or is an artifact of film grain and print reproduction.
The object's true distance from the camera, which every other measurement in the case depends on.
Why the Trents waited nearly a month before mentioning the photographs to anyone outside their household.
Whether the original camera and any test exposures still exist for further analysis.

Classification history

1950
Photographs published without formal case evaluation — Local and national press
McMinnville Telephone-Register, then Life magazine, June 26, 1950.
1969
Unidentified (Case 46); evidence held to be "consistent with" an extraordinary object, hoax not excluded — Condon Committee (University of Colorado UFO Project)
2013
Probable hoax; geometry reported as consistent with a small suspended model — IPACO photogrammetric study
2026
Unresolved: insufficient data — Anomaly Index

Sources

Primary source: Tier A
Scientific Study of Unidentified Flying Objects (Condon Report) (opens in new tab)University of Colorado (under U.S. Air Force contract) · 1968 · archived copy (opens in new tab)
Source provenance note
Air Force–commissioned academic study led by physicist Edward Condon. Contains detailed case analyses, including several the study itself left unexplained. Full text mirrored by the National Capital Area Skeptics with permission; the original was published by the University of Colorado in 1968 and in print by Bantam in 1969.
Credible secondary source: Tier B
The Trent UFO Photos — 'Best' of All Time — Finally Busted? (opens in new tab)Skeptical Inquirer (Center for Inquiry) · 2015-01
Source provenance note
Investigative feature surveying independent photogrammetric re-analyses of the 1950 Trent (McMinnville) photographs, including a 2013 study by the imaging firm IPACO concluding the object was a small model suspended from a wire. Used here for the contested reassessment of Condon Report Case 46, not to independently qualify the incident for inclusion.