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.
“Red River”1 page
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## RESTRICTED Mr. Minozewski observed a strange metallic disk on three occasions thru the theodolite while making his pibal observation during a six- months period. Mr Minozewski last observed the disk in April 1947 at 1100 E Pibal Observation when the balloon was at 15,000 ft. He followed it for 15 seconds. It was moving on level flight from east to west to the far north of the station. The object was a metallic like chrome - shaped something like an ellipse with a flat level bottom and a dome like-round top. The disk appeared below the (weather) balloon, was much larger in size (in the instrument) and shown like silver. It was impossible to estimate the height or speed of the disk except that it appeared to be moving rather rapidly. Miss Baron, a co-worker observed the disk when her balloon was at about 27.000 ft. She thought the color to be a dull metallic luster. RESTRICTED
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.