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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## RESTRICTED Two army officers reported to Office, Director of Intelligence, Hq. Alaskan Dept., Ft Richardson, Alaska, saying that they had witnessed an objectpassing thru the air at tremendous speed. Object appeared to be a sphere and did not give the impression of being saucer-like or comparable to a disk. Altho, the first officer stated that it would be impossible to give minute details, the object appeared to be 2 to 3 feet in diameter and did not leave any vapor trail in the sky. He stated the object appeared metallic and silver in color (like that of airplanes) As there was scattered cloud formations at 10,000 ft and the object was noted to be traveling below the cloud formation they were able to determine the approximate altitude. To the second officer the object appeared approximately 10 ft in diameter and compared it to half the size of a full moon on an ordinary night. He estimated the altitude to be only 3,000 or 4,000 ft. The object appeared broadside to the second officer and gaveno evidence of a spinning motion or did he note a reflection. To him it appeared to be a dull metal finish. In conclusion the second officer pointed out that the object was definitely traveling against the wind. ESTRICTED
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.