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.
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# Office Memorandum UNITED STATES GOVERNMENT TO : SAC DATE: 6/7/54 FROM : Al Lau - Night Clerk 7:40 AM SUBJECT: SIGHTING OF UNIDENTIFIED OBJECTS OVER PASCO, WASH. 6/6/54, 11:35 PM P. V. HOWELL, Chief, Counter Intelligence, 20th OSI, advised as follows: GAIL PECK, Pasco, Wash., Phone Pasco 6054, supervisor of a local ground observer group at pasco, reported sighting two half-moon shaped objects about six times as large as a half moon. One object formed into a large fire-ball, the original color of both objects was white, and the other formed into two fireballs. Both objects were estimated to be at about 1000 feet altitude. The distance could not be estimated. The objects were both at a five degree angle from the line of sight of the observer. The location was slightly north of Pasco. The location has been pinpointed on the Aeronical planning map at grid coordinate AB 5517. They were observed for a period of ten minutes. The Intelligence Officer, 25th Air Division is not going to submit a written report, however he will follow this verbal report up with a letter to this office. He has not made a report to the press and it is assumed that they received their information from local sources. AFL/
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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.