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 1. Date 30 June 1947 Incident # 78 2. Time 0910 MST 3. Location Near Williams Field over Grand Canyon. Arizona 4. Name of observer Lt William G. McGinty, USN 5. Occupation of observer P-80 student, Williams Fld. Chandler, Ariz. 6. Address of observer Williams Fld., Chandler, Ariz. 7. Place of observation plane 8. Number of objects 2 9. Distance of object from observer I/S 10. Time in sight M/S 11. Altitude decreasing from 25,000 ft 12. Speod "inconceivable" 13. Diroction of flight straight down 14. Tactics /s 15. Sound s/s 16. Size 8 ft in dia. 17. Color mixedbox Light gray 18. Shape circular 19. Odor detected N/S 20. Apparent construction I/S 21. Exhaust trails N/S 22. Weather conditions I/S Effect on clouds I/S Sketches or photographs none 25. Manner of disappearance Seemed to have hit ground some 25 miles south of the South Rim of Grand Canyon, Arizona. 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.