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
Object was perceived floating in the sky coming from the west over Ohio State Student Housing Project and was approximately 100 feet off the ground when first observed. It got lower all the time and landed in a field nearby. Three small boys ran toward it and observer went over to investigate. Saw paper bag affair approx 2 feet in diameter and 3-1/2 feet long made of white crepe paper. (like old time "County-Fair" hot air balloons) It was smoking when first observed and this was caused by a large ball of waste material which was fastened underneath it. There were no marks or writing on it Note: See Incident 156 - in which time & direction tally.
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.