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 Object seemed to be some sort of flare. Witness thought it was some aircraft in trouble. Requested the tower to take a look at it to determine if it were a flare. It appeared, with the naked eye, to be a very bright light the color of ordinary fire which lost and regained altitude in the manner of a parachute flare riding on thermals. The intensity of the light varied. This was attributed to clouds passing below; however, the light was readily discernible thru the clouds. The sky was clear to scattered. When the object was compared to the stars there was a decided difference. Stars were of the usual white; this object was yellow or flame color. When first seen it appeared to be about 4,000 ft but disappearing over the horizon would make it much higher. The movement was very slow in appearance and it left no trails or tails like a meteor or comet. Place of disappearance was approximately due west from position of observer. NOTE: See also 48, 48a, 48b, 48c, 48d & 33, 33a, 33b, 33c, 33d, 33e, 33f & 30 and 32. CONFIDENTIAL
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.