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.
“Hamilton”5 pages
Read from the scan by GLM-OCR; expect the odd misread word.
CHECK-LIST - UNIDENTIFIED FLYING OBJECTS Incident # 1. Date 3 Sept 47 2. Time 1215 3. Location Oswego, Oregon 4. Name of observer Mrs. Raymond Dupui 5. Occupation of observer N/S 6. Address of observer N/S 7. Placo of observation Oswego, Oregon 8. Number of objects 12 to 15 9. Distance of object from observer N/S 10. Timo in sight N/S 11. Altitude high 12. Speed N/S 13. Diroction of flight N/S 14. Tactics N/S 15. Sound N/S 16. Size N/S 17. Color silver 18. Shape round 19. Odor dotoctod N/S 20. Apparent construction N/S 21. Exhaust trails N/S 22. Weather conditions N/S 23. Effect on clouds N/S 24. Sketches or photographs none 25. Manner of disappearance N/S RESTRICTED 26. Remarks: 12 to 15 round silver objects seen at high altitude above Oswego, Oregon at 1215, 3 Sept 47 while witness was observing a local plane flying overhead.
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.