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.
“Anderson”4 pages
Read from the scan by GLM-OCR; expect the odd misread word.
CHECK-LIST - UNIDENTIFIED FLYING OBJECTS
1. Date 6 Aug 47
2. Time Around 2245
3. Location Philadelphia, Pa.
Incident # 70A
4. Name of observer John J. Kelley
5. Occupation of observer retired police officer
6. Address of observer 1442 Vankirk St
7. Place of observation above
8. Number of objects 1
9. Distance of object from observer N/S
10. Time in sight gone in a split second
11. Altitude N/S
12. Spood South Very rapid
13. Diroction of flight South
14. Tactics N/S
15. Sound No noise
16. Size large
17. Color N/S
18. Shapo "like giant firecracker"
19. Odor detected None
20. Apparent construction N/S
21. Exhaust trails "fiery trail for about 100 ft"
22. Weather conditions clear
Effect on clouds N/S
24. Sketches or photographs $ \mathbf{N}_{0} $ne
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.