Correspondence Relating to Project Blue Book, 1955

This 1954 to 1955 file of U.S. Air Force Directorate of Intelligence correspondence gathers letters and memos about the Unidentified Flying Object Program. In one memo, the Air Force says an object that fell at Sylacauga, Alabama was identified as a meteorite at the Air Technical Intelligence Center. Donald Keyhoe questions the Office of Naval Research about the Navy's analysis of the Tremonton film, and the Navy says data are insufficient and it sees no danger. Most of the replies to the public enclose the Air Force UFO summary.

From the source:Release of 2026-07-10 Incident: 1955, Various. 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.

7 September 1955

Mr. Robert J. Gribble, President

International Space Observers League

P. O. Box 441

Seattle 1, Washington

Dear Mr. Gribble:

With reference to your letter of 19 July 1955, you are right in assuming that the Air Force is not firing test missiles over major American cities into the airways of major airlines. We are soon to release to the public information that has been gathered since 1948 pertaining to unidentified flying objects. This has been called Project "Bluebook."

Thank you for your interest in the Unidentified Flying Object Program and the United States Air Force.

Yours very truly,

TIMOTHY R. JOHNSON

Lt Colonel, USAF

Director of Intelligence

AFOIN-X

Lt Col Johnson

D/I File Cy, X2B2

D/I X-Ref File Cy, X2B2