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
Read from the scan by GLM-OCR; expect the odd misread word.
CHECK-LIST - UNIDENTIFIED FLYING OBJECTS Incidont # 1. Date 24 June 47 2. Time afternoon 3. Location Cascade Mts. (Portland, Oregon 4. Name of observer Fred M. Johnson 5. Occupation of observer Prospector 6. Address of observer Globe Hotel, 106 N. W. 1st Ave, Portland, 7. Place of observation Cascade Mts 8. Number of objects 5 or 6 9. Distance of object from observer overhead at 1,000 ft 10. Timo in sight 45-60 seconds 11. Altitude 6,000 ft from sea level 12. Speed I/S 13. Diroction of flight SE 14. Tactics banking 15. Sound none 16. Size about 30' dia 17. Color W/S 18. Shape round with tail 19. Odor dottocted I/S 20. Apparont construction N/S 21. Exhaust trails N/S 22. Weather conditions Clear 23. Effect on clouds I/S 24. Sketches or photographs None 25. Manner of disappearance E/S 26. Remarks: (over)
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.