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.
CHECK-LIST - UNIDENTIFIED FLYING OBJECTS Incident # 1. Date 4 July 1947 2. Time 1305 3. Location Oregon 4. Name of observer Earl E. Patterson 5. Occupation of observer Patrolman - former Air Corps pilot 6. Address of observer 124 Southeast 13th Avenue, Portland, Oregon 7. Place of observation Southeast 82d and Foster Road, Portland 8. Number of objects 1 9. Distance of object from observer N/S 10. Timo in sight N/S 11. Altitude Approx 30,000 ft 12. Speed Terrific - faster than any speed witness had ever seen Direction of flight Southwesterly direction over Portland Tactics XXX Performed 90° angle without difficulty - thought to be radio controlled 15. Sound None 16. Size N/S 17. Color Aluminum Shapo disc Odor detected max N/S 20. Apparent construction N/S Apparently metallic or eggshell white didn't reflect light 21. Exhaust trails None 22. Weather conditions N/S Effoct on clouds N/S 24. Sketches or photographs None 25. Manner of disappearance N/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.