DOW-UAP-D096, Correspondence Relating to Project Blue Book, 1955
This file contains correspondence relating to Project Blue Book, a 1952-1969 U.S. Air Force program to investigate the nature and origin of unidentified flying objects (UFO). The correspondence includes letters and memoranda sent between various departments and agencies of the U.S. Government, the Legislative Branch, and private citizens concerning UFO sightings and the research and findings of Project Blue Book.
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Document Intel
Source status, provenance, and extraction context.
- Source
- War.gov PURSUE
- Type
- Report
- Classification
- Unclassified
- Agency
- Department of War
- Reference #
- RELEASE-04-FILE-020-DOW-UAP-D096-CORRESPONDENCE-RELATING-TO-PROJECT-BLUE-BOOK-1955
- Published
- 2026-07-10
- Content Type
- application/pdf
- Pages
- 220
Structured Analysis
Claims and source material extracted from the document text. Timeline context is surfaced in document intel.
The Air Technical Intelligence Center forwarded replies and information about unidentified flying objects through Air Force intelligence policy channels.
AIR TECHNICAL INTELLIGENCE CENTER
A high-school student wrote Project Blue Book seeking material for a public-speaking assignment, illustrating the volume of educational and public requests handled by the program.
U.S. Air Force Project Bluebook
Another student letter asked the Secretary of the Air Force about secrecy, war, and public disclosure, reflecting public speculation rather than an official finding.
I have become extremely interested in flying saucers
A City College writer requested Air Force information for articles on interplanetary flight, another example of media and educational correspondence in the file.
engaged by "Main Events"
The Office of Naval Research asked Air Force intelligence for information on unidentified flying objects, documenting interagency interest.
Chief of Naval Research To: Director of Intelligence, U. S. Air Force
Bernard Baruch Jr. acknowledged information about UFO reports sent to U.S. embassy attachés, showing that reporting channels extended overseas.
reports on unidentified flying objects made to attaches at our embassies
The Army Corps of Engineers referred a reported falling object at Sardis Lake through military intelligence channels for evaluation.
Falling Object - Sardis Lake
Air Weather Service identified the Sardis Lake object as an atmospheric-detection device used for upper-air soundings and requested its return for rehabilitation.
an atmospheric detecting device used by the U.S. Air Weather Service in making upper air soundings
A correspondent from Mexicali reported seeing a saucer-like craft near Cerro Prieto at low estimated altitude; the letter is an unverified personal account.
More than two years ago, I personally saw a flying saucer
Project Blue Book’s fiscal-year summary described reports processed through military channels and separated civilian from military submissions.
STATUS AND INFORMATION SUMMARY PROJECT BLUE BOOK FOR THE FISCAL YEAR 1 JULY 1954 - 30 JUNE 1955
The summary credited rapid on-site investigation with reducing insufficient-data and unknown classifications and listed broad categories including balloons, astronomical objects, aircraft, and reflections.
This program provides primarily for rapid "on the spot" UFO investigations
An Air Force reply told a civilian observer that voluntary reports were useful to an active investigation program.
information such as yours submitted on a voluntary basis
A civilian research organization requested Project Blue Book information and cited popular-magazine coverage, illustrating the program’s continuing interaction with advocacy groups.
National Space Observers League
The file includes a standardized sighting form requesting date, time, size, shape, speed, altitude, direction, maneuver, color, sound, duration, weather, visibility, and observer information.
PLEASE SEND TO YOUR NEAREST AIR FORCE BASE
Air Force intelligence routed a letter from Bandung, Indonesia, to the U.S. air attaché in Jakarta for action.
Letter From T.M. Onverzaagt, Bandung, Indonesia
The translated Indonesian letter concerned a claimed method for manufacturing or developing a flying-saucer concept; it is correspondence, not validation by the Department of Defense.
G2 TRANSLATION NO. G-5144
Chronology extracted from the document text.
Indonesian correspondence routed
A Bandung letter was sent to the U.S. air attaché in Jakarta for action.
Civilian and publishing requests processed
Project Blue Book and Air Technical Intelligence Center handled requests from researchers and organizations.
Air Weather Service identified sounding device
The Sardis Lake object was identified as an upper-air atmospheric-detection device.
Sardis Lake object referred
Army and Air Force offices routed a reported falling object for technical identification.
Project Blue Book fiscal-year activity summarized
The program compiled report categories and described changes in insufficient-data and unknown classifications.
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