Documents / Official release
This U.S. Department of War file collects Project Sign era checklists and incident summary sheets for incidents 101 to 172. The largest item is the 18 February 1948 explosion over Norcatur, Kansas. For it the file gathers witness statements, speculative letters from Norman G. Markham, and Dr. Lincoln LaPaz's view that it was a genuine meteorite fall with curious aspects. Other entries cover B-29 crews, a two-decked wingless object over the Netherlands, a Turkish rocket report, a Moscow sighting, and George Gorman's 1 October 1948 Fargo encounter.
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.
CHECK-LIST - UNIDENTIFIED FLYING OBJECTS 1. Date 210 Aug 48 Incident # 154a 2. Time 7:50 P.M. 3. Location Columbus, Ohio 4. Name of observer Jaymes Saunders, A. B., M. A. 5. Occupation of observer Housewife 6. Address of observer 1337 Clifton Ave, Columbus, Ohio 7. Place of observation Columbus, Ohio 8. Number of objects 1 9. Distance of object from observer N/S 10. Time in sight 15 minutes Altitude 1/2 mile high Speed slow and regular speed Direction of flight from North to South to Southwest N/S Tactics/ Oblong to circular to oblong change in shape Sound None Size of small plane Color N/S Shapo Changing but circular for the most part Odor detected. N/S 20. Apparent construction N/S Exhaust trails tail of smoke 22. Weather conditions Unusually favorable for observation. Light sufficient without interference from sun's rays. 23. Effect on clouds Cloudless 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 under it. The text was read from the page images by an OCR model; expect the odd misread word. 178 pages are in the text index: search them above, or from the library's search.