Documents / Official release
This Federal Bureau of Investigation Seattle field office file (100-18945) gathers flying saucer material from 1952 to 1960. It holds newspaper clippings, citizen complaint forms and agent memoranda about sightings over Pasco, Kennewick, Seattle, Richland and the Hanford reservation, Spokane and other Washington locations. The file records 1952 agreements with military intelligence on passing reports to OSI and the Air Force. One Hanford sighting from 1953 was attributed to a meteorological balloon. The FBI itself carried out no investigations.
From the source:Release of 2026-06-12 Incident: July 1952-1960, Washington State, United States. This file details an investigation of various sightings of Unidentified Flying Objects (UFOs) in Washington state between July 1952 and August 1960. This file includes memoranda and correspondence between the Federal Bureau of Investigation and the U.S. Air Force regarding UFO sightings.
“Spencer”11 pages
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# 1015 Second Avenue Seattle 4, Washington October 31, 1958 Mr. Alvin A. Wilcox South 2816 Monroe Spokane 41, Washington Dear Mr. Wilcox: Your letter of October 25, 1958 enclosing a completed questionnaire that had been furnished by Aerial Phenomena Research Group, 5108 Findlay Street, Seattle, Washington, has been received. I am forwarding your letter and completed questionnaire to the Office of Special Investigations, United States Air Force, McChord Air Force Base, Washington, for their information. Your interest in making this data available is appreciated. Very truly yours, D. S. HOSTETTER Special Agent In Charge 1 - Addressee 2cc: OSI, McChord AFB (Encls. 2) 1 Seattle LAD/pg 104 18945 100-18945-71
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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. 55 pages are in the text index: search them above, or from the library's search.