Documents / Official release
This U.S. Department of War file, undated, holds checklist summaries of incidents 1 to 100 of unidentified flying objects reported in 1947 and early 1948. The first entries cover sightings of silver discs and spheres by officers and staff at Muroc Army Air Field on 7 and 8 July 1947. Next come the Portland, Oregon police reports of 4 July, a United Air Lines crew near Emmett, Idaho, and a set of 30 December flame and explosion reports from California and Nevada. The file ends with two Finnish sightings.
From the source:Release of 2026-05-08 Incident: N/A, N/A. NARA Record Group 38, catalogue id 143685. Each of these incident summaries includes a "Check-List - Unidentified Flying Objects" that contains details about the incident. Many summaries also include witness lists or statements and other narrative reports or descriptions.
“Anderson”4 pages
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## CONFIDENTIAL Joseph Ruvolo and S/Sgt. Gerald E. Nauman to the front of the B.O.Q. "A" Bldg. Pointing up in a direction directly above the group he asked them to explain what they saw. Witness states that she saw 2 silver-colored disc-like objects flying toward Mojave, Calif, one directly back of the other, at a speed of about 300 to 400 MPH at an altitude of approximately 8,000 ft. She listened carefully for a few minutes but could hear no drone such as occasioned by any aircraft. Casting her eyes for a moment in another direction and then looking back to the same spot she was able to distinguish the same objects again. Assured that it was not eye-strain, she was convinced the objects were not weather balloons due to the horizontal position in which they traveled. Nor could they have been birds since they reflected the sun's rays. Some three or four minutes after the objects had nearly disappeared she saw another flying object similar to the above-mentioned objects. It was silver colored and disc-like in shape. Unlike the first two, it flew in a tight circle, neither losing nor gaining altitude, at approximately 8,000 ft. She thought it performed too tight a circle to have been any type aircraft with which she was familiar. Evaluation: Confirmed by other sources
Official release, from the pursue collection. The PDF is mirrored here; the original link is above. The text was read from the page images by GLM-OCR; expect the odd misread word. 209 pages are in the text index: search them above, or from the library's search.