Documents / Official release
This section of the FBI's 1947 flying disc file (62-HQ-83894) collects correspondence between FBI field offices and Army Air Forces intelligence. It includes a Portland prospector's claim to have seen disc objects near Mount Adams on June 24, 1947, an Air Force report on the August 1 crash near Kelso, Washington that killed investigators Davidson and Brown, and the Maury Island claims of Dahl and Crisman. Other items are an MIT analysis of cast iron fragments from New Hampshire, the A. C. Urie Twin Falls sighting, and the Bureau's decision to stop its disc investigations.
From the source:Release of 2026-05-08 Incident: N/A, N/A. The FBI's 62-HQ-83894 case file includes investigative records, eyewitness testimonies, and public reports concerning Unidentified Flying Objects and flying discs documented between June 1947 and July 1968. The records include high-profile incident accounts, photographic evidence from sites like Oak Ridge, TN, and technical proposals regarding potential propulsion systems. Additional topics include convention programs, researcher accounts, and extensive media coverage from the period. This file is partially posted on FBI vault with more redactions and some pages missing. Included here is the complete case file with several newly declassified pages and only minor redactions.
was - f Office _Memo \ .,,.,um • UNITED S1n. ... ..__ ;.ovERNMENT TO FROM SUBJECT: . METAL FRAGMENTS O SERVED AT WEST RUDGE, NE11 HAMPSHIRE, JULY 7, 1947 SECURITY MA.Tr.ER (X 7-29-47 Referenoe is made to Boston teletype to tho Bureau datod July 18, 1947. Dean John M. Bunker, the original inf'or111ant, baa advi:sed that a speotographio examination has boen oomplotod of tho metal partioles referred to. Thay were determined to be of ordinary oast iron whioh bad boen aubjeoted to a very high degree of heat. The heat caused aoales to be formed on the oaet iron whioh were originally thought to bo of some metallic alloy. The soientist examining the partioloa oonoluded that if they had oome through the air from any great altitude in as small pieoea aa they were found th.en most of the heat would have been taken from them by the time they reao~ed the ground and fires 'WOUld not havo resulted. It ia noted they landed approximately 700 feet from a railroad traok e.nd inquiriea were oonduoted by MI'!' to determine whether or not the partioles oould havo been originally a pa.rt of a liuer in a smoke staok or some other part of the steam engine. Theee inquiries resulted in positive information -that the particles did not oome from a train or looomotive. Measurements of the four pieoes examined revealed that they had most likely been originally all part of one hollow oylinder, eight inohes in diameter and three sixteenth• of a.n inoh in thioknesa. It felt that ono piooo falling from a great height would haw still retained a good part of its heat and probably 11ould have mashed when 1t hit the ground. A aoiontiat, whom Doan Bunker did not identify by name, recalled that oast iron oylindors of similar measurements had been used in New Mexioo on roaearoh work on a guided missile projeot. However, this unidentified scientist not so oonoludo to the exoluaion or all other possibilities. OON P INi'T, '" is intere l ting to note that the examination at MIT was a.otually oonduoted b) (7)(0) who furnished the Boston Office with an informal report similar~ in all major details to that supplied by Dean Bunker above. The man at MIT ,. are gathering through friends all additional pieoes of the origin&l oylin ~ available. These will be turned over to the Boston Office. No further examination is being oonduotad by MIT and no effort is ·being ma.de t reoonatruot tho original cylinder. - \t 1) Unlesa advised to the contrary by August 15• 1947 the destroy these specimon,. In tho interim they will be transmitted to the Bureau on speoifio Bureau instruotiona. ~~~ COPIES DQq~'llOYED --<1<.c:P , F 27 0 NOV ld Wb4 EX·64 ~ ~i ~ <t1P 3l 55C j 'Ml-1 • ~ oston Offioe will I
Official release, from the pursue collection. The PDF is mirrored here; the original link is above. 190 pages are in the text index: search them above, or from the library's search.