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.
“Los Angeles Times”1 page
Read from the scan by GLM-OCR; expect the odd misread word.
CHECK-LIST - UNIDENTIFIED FLYING OBJECTS Incident # 1. Date 7 July 1947 2. Time 2230-2300 3. Location Arlington, Va. 4. Name of observer James A. Cobb 5. Occupation of observer Lt Col., AG 6. Address of observer I/S 7. Place of observation Arlington, Va. - 2807 N. Glebe Road. 8. Number of objects 1 9. Distance of object from observer 3/4 mile 10. Timo in sight 2-3 seconds 11. Altitude less than 500 ft Speed that of jet 13. Diroction of flight SOUTH EAST 14. Tactics E/S 15. Sound I/s 16. Sizo Small plane 17. Color Reflected white light 18. Shapo "blob" 19. Odor detected N/S 20. Apparent construction E/S 21. Exhaust trails None Weather conditions Scattered clouds - Visibility: 10-12 mi. 23. Effoet on clouds None 24. Sketches or photographs 2 25. Manner of disappearance behind trees 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.