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.
“Hill”2 pages
CHECK-LIST - UNIDENTIFIED FLYING OBJECTS
Incidont #
1. Date Between 17 & 21 May 1947
2. Time Just after dusk - (2030 & 2100)
3. Location Oklahoma City, Okla.
4. Name of observer Byron B. Savage
5. Occupation of observer Field Engineer for Radio Corp of Amer Holder of a private pilot's license
6. Address of observer 416 N.W.29th St., Oklahoma City, Okla.
7. Place of observation As above
8. Number of objects 1
9. Distance of object from observer
10. Time in sight 15-20 seconds
11. Altitude 10,000 - 18,000 ft
12. Speed 3 times that of jet
13. Direction of flight $ 1 6 0^{ \circ} $ south to $ 3 5 0^{ \circ} $
14. Tactics straight flight
15. Sound loud swishing sound after passage
16. Size bulk of mix B-29's
17. Color frosty white
Shape Round but disc-like with no protrusions
Odor detected I/S
20. Apparent construction I/S
21. Exhaust trails None
22. Weather conditions I/S
23. Effect on alouds I/S
24. Sketches or photographs None
25. Manner of disappearance flew out of sight
26. Romarks: (over) Official release, from the pursue collection. The PDF is mirrored here; the original link is under it. The text was read from the page images by an OCR model; expect the odd misread word. 209 pages are in the text index: search them above, or from the library's search.