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.
# CONFIDENTIAL CHECK-LIST - UNIDENTIFIED FLYING OBJECTS Incident #5 1. Date 4 July 1947 2. Time 1305 3. Location Portland, Oregon 4. Name of observer Kenneth A. McDowell 5. Occupation of observer Patrolman, Portland City Police 6. Address of observer Portland City Police Dept.. Portland, Oregon 7. Place of observation Parking lot back of police station 8. Number of objects 5 9. Distance of object from observer I/S 10. Time in sight E/35 11. Altitude I/S 12. Speed Great speed 13. Diroction of flight 2 discs flying south. 3. in easterly direction 14. Tactics Dipped up and down in oscillating motion at great speed 15. Sound None 16. Size X/IX Large 17. Color Could not be determined 18. Shapo Round - disc-shaped 19. Odor detected I/S 20. Apparent construction N/S 21. Exhaust trails N/S - No visible means of propulsion observed 22. Weather conditions E/S 23. Effect on clouds I/S 24. Sketches or photographs None 25. Manner of disappearance Quickly - before any detailed observation could be made 26. Romarks: (over) CONFIDENTIAL
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.