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.
“Gray”4 pages
CHECK-LIST - UNIDENTIFIED FLYING OBJECTS 1. Date 9 July 1947 Incident # 2. Time About 12:17 3. Location Between Boise & Meridian 4. Name of observer David H. Johnson 5. Occupation of observer I/S 6. Address of observer Boise, Idaho 7. Place of observation Air 8. Number of objects 1 9. Distance of object from observer over a mile 10. Time in sight 10-30 seconds 11. Altitude N/S 12. Speed great 13. Direction of flight 14. Tactics slow roll, climbed with jerky rising motion 15. Sound I/S 16. Size 25 cent piece 17. Color black 18. Shapo round 19. Odor detected I/S 20. Apparent construction I/S Exhaust trails : m/s 22. Weather conditions part cloudy Effect on clouds N/S Sketches or photographs sketch of movement Manner of disappearance lost sight of the object 26. Romarks: (over) CONFIDENTIAL
Official release, from the pursue collection. The PDF is mirrored here; the original link is under it. The text was read from the page images by an OCR model; expect the odd misread word. 209 pages are in the text index: search them above, or from the library's search.