Documents / Official release
This U.S. Department of War file, undated, holds checklist summaries of incidents 1 to 100 of unidentified flying objects reported in 1947 and early 1948. The first entries cover sightings of silver discs and spheres by officers and staff at Muroc Army Air Field on 7 and 8 July 1947. Next come the Portland, Oregon police reports of 4 July, a United Air Lines crew near Emmett, Idaho, and a set of 30 December flame and explosion reports from California and Nevada. The file ends with two Finnish sightings.
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.
“Anderson”4 pages
Read from the scan by GLM-OCR; expect the odd misread word.
The object when first sighted appeared white then it turned red. Its real shape could not be distinguished until it descended. It then took the form of a cone or up-side-down triangle. (See Sketch "A") When it climbed it was right side up (Sketch "B") ## Sketch "A" On ascending and descending it appeared to have a green mist following it See Sketch "C" -- green mist red Speed could not be determined in miles per hour for it appeared to hover at spots, then, when it moved, it moved with great speed. After making a vertical descent and ascent it headed due SW at great speed and disappeared at approx 1955 EST. Distance from the field when first sighted was some 15 to 20 miles. There was no sound. The trail, maybe from exhaust, was green (at least thru the field glasses it appeared green) During the time it was under observation a cloud passed under it and the light shown thru. According to this observer the object was not a balloon, a comet, star or any known aircraft. The light did not come from an aircraft's running lights. The whole object appeared surrounded with burning gas or something which emitted a light. See also: 48, 48a, 48c, 48d & 33, 33a, 33b, 33c, 33d, 33e, 33f and Incidents 30 and 32. CONFIDENTIAL
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. 209 pages are in the text index: search them above, or from the library's search.