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.

AFOIN

SUBJECT: Falling Object - Sardis Lake

TO: Office of the District Engineer

Vicksburg District

U.S. PO and Court House Building

Vicksburg, Mississippi

ATTN: I/C Windham, Asst Dist Eng

1. Reference your letter of 26 January 1955, file number LMKVC, subject: Falling Object - Sardis Lake.

2. The object described is an atmospheric detecting device used by the Air Force Air Weather Service in making upper air soundings.

3. Request the instrument be sent to the following address:

Sacramento Air Material Area

McClellan Air Force Base

Sacramento, California

ATTN: Radiosonde Rehabilitation

4. Your assistance in the recovery of this instrument is greatly appreciated.

FOR THE CHIEF OF STAFF:

ALBERT D. FOWLER

Major, USAF

Directorate of Intelligence