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 # 112e 1. Date 8 April 1948 2. Time 14:30 3. Location Delaware, Ohio 4. Name of observer Rev. John H. Bergen 6. Address of observer 111 North Washington Street 7. Place of observation From the ground 5. Occupation of observer Pastor 8. Number of objects One 9. Distance of object from observer Not determined 10. Timo in sight Ten minutes 11. Altitude Several thousand feet Speod Not too fast 13. Diroction of flight Almost due west into the wind 14. Tactics None 15. Sound None 16. Size Not less than 5 feet in width 17. Color Very white 18. Shape Spherical, with a small protrusion above it, like vapor streaks 19. Odor detected None 20. Apparent construction N/S 21. Exhaust trails None 22. Weather conditions Clear 23. Effect on clouds N/S 24. Sketches or photographs None 25. Manner of disappearance Disappeared from view behind the trees 26. Remarks: This object appeared like a concentrated bit of cloud except it was clearly outlined. The size could not be determined,
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.