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.
“Hill”8 pages
CHECK-LIST - UNIDENTIFIED FLYING OBJECTS Incident # Date 31 July 48 Time 8:00 P.M. Location Columbus, Ohio Name of observer Robert C. Goshorn Occupation of observer Teletype Operator Address of observer State Highway Patrol Radio Station Place of observation Near Golf Driving Range, Columbus, Ohio 8. Number of objects 1 9. Distance of object from observer Object was balloon which fell to earth & was investigated by observer 0. Time in sight N/S 11. Altitude Came to earth from around 100 ft (when first observed) 13. Direction of flight earthward Size 2 ft x 3-1/2 ft Color white crepe paper Shapo N/S - but said to be like old time "County Fair" balloon - round Odor dotectod N/S Apparent construction crepe paper Exhaust trails smoking-caused by large ball of waste material Weather conditions N/S - (clear - see Incident: 156) Effect on clouds N/S (no clouds) Skotches or photographs None Manner of disappearance Fell to earth where it was retrieved. 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.