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.
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# HEADQUARTERS STRATEGIC AIR COMMAND Andrews Field Washington 20, D. C. A2B SAC 350 (29 Mar 48) 29 March 1948 SUBJECT: Report of Unidentified Aerial Sounds. TO: Chief of Staff United States Air Force Washington 25, D. C. Attention: Director of Intelligence 1. The following is quoted from a copy of a letter, Baltimore Office, FBI, addressed to the Director of Intelligence, Second Army: "On March 23, 1948, an individual, who desired that her identity be kept confidential, telephonically communicated with this office and indicated that she is the wife of a former member of the United States military forces, and that she is presently active in American Legion activities, but was emphatic in stating that she was in no way hysterical or unduly apprehensive regarding present world conditions. She did, however, wish to bring to the attention of the proper authorities that during the past six or eight weeks, on a number of occasions between the hours of 3:00 and 5:00 A.M., she has heard peculiar sounding noises in the sky, which appear to come from airplanes in the distance, but the sound is not the type of airplane motor drone which is generally heard from American planes. She has discussed the matter with her husband, and he believes that the sound is more like that of a foreign type airplane. She recently discussed this matter with an unidentified woman who lives in her neighborhood, which is Hamilton, Baltimore, Maryland, and this woman stated that she, too, had heard the noise in question, and that her husband is also an ex-G.I. and he has stated that the motors sounded like that of foreign planes." 2. No action is contemplated by this headquarters. FOR THE COMMANDING GENERAL: c/c furnished CG, AMC, Attn: MCI. ALAN MARCEAU CWO, USAF Asst Adj Gen
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. 178 pages are in the text index: search them above, or from the library's search.