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.
Read from the scan by GLM-OCR; expect the odd misread word.
## RESTRIOTED CHECK-LIST - UNIDENTIFIED FLYING OBJECTS 1. Date 24 June 1947 Incident # 28 2. Time Not stated 3. Location Idaho 4. Name of observer Lt Governor Donald S. Whitehead 5. Occupation of observer Lt. Governor 6. Address of observer Not stated 7. Placo of observation Idaho western sky 8. Number of objects 1 9. Distance of object from observer Not stated 10. Time in sight Not stated 11. Altitude Not stated 12. Speed Remained immobile 13. Direction of flight Didn't move just seemed to go below the horizon with the rotation of the earth 14. Tactics hovering 15. Sound Not stated 16. Size not stated 17. Color not stated 18. Shapo comet-like 19. Odor detected Not stated 20. Apparent construction not stated 21. Exhaust trails Not stated 22. Weather conditions Not stated 23. Effect on clouds comet-like hanging in the western sky Sketches or photographs Not stated 25. Manner of disappearance 26. Remarks: XXXX (Over) seemed to go below the horizon with the rotation of the earth.
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.