Documents / Case file
This U.S. Air Force Project Blue Book file compiles 1952 and 1953 messages, memos and reports on the movie film Navy Chief Photographer Delbert C. Newhouse shot on 2 July 1952 near Tremonton, Utah. It records interviews with Newhouse's family, requests about the film, and Navy and General Mills balloon experts judging that the objects closely resembled pillow balloons. It also covers internal debate about releasing the film to the press. Unrelated reports from Phoenix, Lexington and Highland Park sightings are included too.
From the source:Release of 2026-09-18 Incident: 7/2/52, Tremonton, Utah. This document records the Project Blue Book investigation and subsequent assessments of an incident near Tremonton, Utah, on July 2, 1952. Project Blue Book was a 1952-1969 U.S. Air Force program to investigate the nature and origin of unidentified flying objects (UFOs). The file describes the Air Force’s assessment of the principal witness, Delbert C. Newhouse, a U.S. Navy Warrant Officer specializing in photography, as honest and reliable, and as an expert with more than 1,000 hours of aerial-photography experience. Newhouse reported observing 12 to 14 reflective objects and recorded the event on color motion-picture film using a handheld Bell & Howell Auto Master camera. The file reflects an evolving Air Force assessment of the imagery over several years. Early documentation considered several possible explanations, including sunlight reflecting from birds or balloons, and a mirage effect, and did not identify the objects conclusively. Later assessments became more confident that the objects were seabirds reflecting sunlight, citing identifiable seabirds and similar films showing seabirds as bright points of light under comparable conditions. However, the film’s limited detail and lack of fixed reference points prevented reliable determination of the objects’ distance, size, altitude, or linear speed from the film alone. AARO Comment: The file contains conflicting references to the film format. Several documents describe a 35mm film, while contemporaneous submission documentation identifies the original as a 50-foot roll of processed 16mm Kodachrome color motion-picture film recorded with a handheld Bell & Howell Auto Master camera. Newhouse reported exposing approximately 30 feet of the roll during the incident and using the remaining film later that day to record unrelated mountain scenery in Idaho. Other records show that 35mm positive and negative duplicate blowups were produced from the original 16mm material. The file also indicates that the original film was duplicated for preservation, citing its deteriorating condition. The footage retained by the National Archives and Records Administration and presented in this collection as DOW-UAP-PR159 is a digitization of a 16mm print.
Photogramnetric -6- Serial 0'2 Analysis ot "Utah" Film That the air turbulence necessary to account tor their movement if' they were nearby inspects (even the single obJect's motion!) is possible, can be concluded. trom examination of reference (8). However, if the objects were nearby spider vebs the lack ot observed or photographed streamers is unusual. Furthermore, the f'aet that they were visible from a moving car for several minutes is hard to reconcile with localized insect activity. The phenomenon of atmospheric mirages, reference (9), might conceivabJ.¥ account tor the images. Such a hypothesis is hampered by the clear weather conditions and the persistence and clarity of the images. Also no "shi.Jmler ing" can be detected end the motion is steady. Again the object which breaks awec, would be dif'f'icult to explain. It has been suggested that spurious optical ref'lect·1ons or light leaks in the camera might be responsible. Examples of' such effects have been ex amined and found to be quite different from the UFO's. The evidence remains rather contradictory and no si:cgle hypothesis of a natural phenomenon yet suggested seems to completely account for the UFO involved. The possibility of multiple hypotheses, i.e. that the utah UFO's ere the result of two simultaneous natural phenomena might possibzy yield the answer. However, as in the case of the "Montana" analysis, no definite conclusion could be obtained. R. M. L. Baker, Jr. May 16, 1956
Case file, from the pursue collection. The PDF is mirrored here; the original link is under it. 156 pages are in the text index: search them above, or from the library's search.