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.
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## CONFIDENTIAL Officer McDowell stated that at approximately 1305, 4 July 1947 while he was on duty at Precinct 51 and feeding the pigeons in the parking lot back of the station he noticed that the pigeons became quite excited over something and fluttered in the air. Officer McDowell in looking around to see what had disturbed them saw 5 large discs in the air east of Portland; two discs flying south and three flying in an easterly direction. He stated he could determine no color to the discs but advised they were dipping in an up and down oscillating motion and were traveling at great speed. He was unable to give an estimate of the speed or altitude of the discs as they were out of sight before any detailed observation could be made. Officer McDowell advised that he notified the Police Radio who immediately broadcast an alert. He saw no indication of any motivating force nor heard any sound coming from the discs and could give no description other than round.
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.