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.
“Office of Special Investigations”19 pages
# Office Memorandum • UNITED STATES GO TO : MR. A. H. BELMONT DATE: September 27, 1950 FROM : MR. L. L. LAUGHLIN SUBJECT: FLYING SAUCERS SAC Cornelius of Philadelphia called at 10:45 A.M. today and stated that yesterday evening while two officers of the Philadelphia Police Department were cruising in their scout car they saw through the windshield an object descending slowly to the earth which appeared at first glance to be a parachute. I told Mr. Cornelius that he was correct in referring this matter to the local office of OSI and that he should direct a letter to the Bureau incorporating all available information concerning the matter and that we here, upon its receipt, in turn would bring it to the attention of OSI Headquarters. When the officers first noticed the object, it was at tree-top level and was described as being six feet in diameter. It landed in a field near-by and the officers, upon examining it, noted that it gave out a purplish glow which was almost a mist. The officers summoned two other police officers. After looking at the object for some time they attempted to pick it up. The object broke, leaving a slight odorless residue. Over a period of about 25 minutes which the officers spent watching the object it completely disintegrated. The officers further commented that the object was so light that when it hit the field, it did not even bend the weeds or the grass it fell on. Mr. Cornelius desired to know what further action should be taken by him. Mr. Cornelius said that he has called the local office of the Air Force but the individual with whom he spoke there said he knew nothing about them and was not aware that his office was looking into reports of this type. LLL:mer RECORDED - 84 62-83894 OCT. 4 1950 EX-29
Official release, from the pursue collection. The PDF is mirrored here; the original link is under it. The text was read from the page images by an OCR model; expect the odd misread word. 271 pages are in the text index: search them above, or from the library's search.