Documents / Official release
This Federal Bureau of Investigation file section, 62-HQ-83894 Section 6 (serials 246 to 301), collects FBI memoranda and correspondence from 1950 to 1952 on flying saucers. It covers green fireballs and discs seen near sensitive installations in New Mexico, Dr. Lincoln LaPaz's analysis, and the Air Force's Land-Air study known as Project Twinkle. It also holds an OSI summary, a USAF directive on reporting unconventional aircraft, a dissolving object reported by Philadelphia police, and letters from members of the public.
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.
“Cooper”3 pages
Read from the scan by GLM-OCR; expect the odd misread word.
## DECLASSIFIED Authority: NND 90986 Hon. J. Edgar Hoover Director, Federal Bureau of Investigation Department of Justice Washington 25, D. C. Dear Mr. Hoover: The inclosed letter, subject: "Reporting of Information on Unconventional Aircraft," is forwarded for your information and any cooperation you may be able to extend. As indicated in the letter it is desired to place this subject in its proper perspective as part of the normal USAF requirement for information of air technical intelligence interest. 1 Incl: a/s Respectfully yours, C. P. Cabiere 29 See SAC Letter #38 Senior 1949 dated 3/25/49 C. P. CABELL Major General, USAF Director of Intelligence RECORDED - 108 62683294249 9. 25.50 This document contains information affecting the national defense of the United States within the meaning of the Espionage Laws, Title 18 U.S.C., Sections 793 and 794. Its transmission or the revelation of its contents in any manner to an unauthorized person is prohibited by law."
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. 271 pages are in the text index: search them above, or from the library's search.