CIA-UAP-D020: The CIA Debriefing of Senator Russell's "Flying Saucer" Sighting, Baku-Tiflis Train, 1955

Source file: CIA-UAP-D020_Memorandum-on-Unconventional-Aircraft-Sightings_1955.pdf Originating agency: Central Intelligence Agency (CIA), Office of Scientific Intelligence (OSI) Document type: Memorandum for the Director of Central Intelligence (DCI), with a Top Secret signature record and cover sheet Date: Drafted October 31, 1955; logged November 1, 1955 Classification: TOP SECRET (declassified; Approved for Release 2026) Page count: 3 (all read) VIRIN: 260710-O-D0360-1137 PURSUE Release: 4

Summary

This is a memorandum from the CIA's Office of Scientific Intelligence (OSI) addressed to the Director of Central Intelligence under the subject "Sightings of Flying Saucers or Unconventional Aircraft." It was drafted on October 31, 1955, by Herbert Scoville Jr., Assistant Director for Scientific Intelligence, and entered into the Agency's Top Secret control system as T.S. 115485 on November 1, 1955.

The document summarizes the debriefing of all four participants in the observation: Senator Richard Russell, Colonel Hathaway, Mr. Efron, and Mr. Gros. The party was traveling by train from Baku to Tiflis at Russell's specific request — he preferred rail transportation wherever feasible. The sightings occurred about ten minutes past Alyaty station, at 1910 hours, after dark. Russell, resting alone in his compartment with the lights out, was first to notice a small greenish-yellow glowing ball rising quite rapidly; he alerted the rest of the party, who a few minutes later observed a second object.

The memo's bottom line is decidedly cautious: only Colonel Hathaway's testimony — describing an object unlike any aircraft, rocket, or missile he had ever seen — supports the existence of unconventional aircraft. All other observations "can probably be explained as steep climbing aircraft or missiles," and the evidence is not sufficiently firm to conclude that the Soviets have a radically new type of aircraft in operation.

Research Article

The setting: a night train in southern Azerbaijan

The memorandum opens by stating that "All four participants in the observation of the flying saucers or unconventional aircraft have now been debriefed," and presents a summary of their accounts. The party, it records, was traveling from Baku to Tiflis "at the specific request of Senator Russell who tried to use rail transportation whenever it was at all feasible."

The time and place are fixed with unusual precision: the sightings began about ten minutes beyond Alyaty — a settlement on the Caspian coast south of Baku — at 1910 hours, after dark. Russell was resting alone in his compartment with the lights out when he noticed a greenish-yellow glowing ball rising rapidly, and informed the other members of the party occupying the second compartment. A few minutes later they too observed another object — meaning the document records two successive sightings, not one.

Four witnesses, four different pictures

The heart of the memo is a systematic, almost forensic comparison of the four accounts, including their points of agreement and divergence:

On one point all four agreed: the object was rotating or whirling as it rose along its initial steep trajectory. Russell and Gros noted no change in that trajectory, while Hathaway and Efron stated that the object shifted quite sharply into horizontal flight. No one except Gros saw any objects on the ground, apart from a searchlight observed by all.

Hathaway's testimony is the outlier and the most significant: "Colonel Hathaway believes that the object did not resemble any aircraft, rocket or missile that he had ever seen." He was a professional military officer, and the memo itself singles his account out as the only one supporting an unconventional-aircraft reading.

Scoville's assessment: reasoned skepticism, not closure

The concluding paragraph is written with the characteristic care of scientific intelligence: "Based on the interviews so far, the only testimony which would support the existence of flying saucers or radically unconventional aircraft is that of Colonel Hathaway." All other observations, Scoville holds, can probably be explained as steep climbing aircraft or missiles.

Notably, the document does not close the case: "Further discussions will probably be required before the matter can be completely resolved." In the meantime, "the evidence does not appear sufficiently firm to warrant the conclusion that the Soviets have developed and have in operation a radically new type of aircraft." For the CIA of 1955 the live question was not extraterrestrials but a possible Soviet technology gap — and on that question the memo returns a cautious negative.

The cover sheet: the path of a Top Secret document

The first page of the file is a "Signature Record and Cover Sheet" (CIA Form No. 26), the routing form attached to every Top Secret document to record its chain of custody. It is stamped November 1, 1955, carries control number 115485, and lists the underlying document as two pages with no attachments. The document was referred to OSI, and the "SEEN BY" column shows handler signatures from November 1, 1955, and from considerably later dates — including what appear to be signatures from October 30, 1961 — evidence that the memo was pulled and re-read years after the event. Some of the handwritten entries are difficult to read in the scan.

The distribution list at the end of the memo includes the Deputy Director for Intelligence (DD/I), the Office of Current Intelligence (OCI), and additional OSI components (ASD/SI, GM/SI, AD/SI) — the findings circulated to the Agency's senior intelligence leadership.

The CIA-UAP-D020 / CIA-UAP-D021 pair and its place in the archive

This document is the second, concluding link in a pair: CIA-UAP-D021, written by Scoville about two weeks earlier, analyzed the incident when the Agency had debriefed only one witness (Mr. Efron), and explicitly recommended "a very careful interrogation" of the other members of the party. CIA-UAP-D020 is the execution of that recommendation — a full debriefing of all four and an updated assessment. The archive also holds Air Intelligence Information Report IR 193-55 (released in PURSUE Release 1), written in Prague days after the event, recording the party's accounts from the U.S. air attache's perspective, as well as a CIA information report on a similar sighting from the same rail line (CIA-UAP-006, Release 3).

Significance

This is the CIA's most senior internal record of one of the best-known sightings in the history of the subject: a sitting U.S. Senator, a military officer, and two official escorts jointly observing a rising luminescent object inside the Soviet Union — and the Agency treating it with complete seriousness, up to the Director's level and under Top Secret control. The memo also showcases the assessment methodology: careful separation of testimonies, identification of the outlier account, and refusal to overconclude in either direction. That the matter was labeled not "completely resolved" in real time carries historical weight of its own.

Key People

Locations

Incidents

Notable Quotes

"The party was travelling by train from Baku to Tiflis at the specific request of Senator Russell who tried to use rail transportation whenever it was at all feasible." -- page 2

"Senator Russell was resting alone in his compartment with the lights out when he noted a small greenish-yellow glowing ball rising quite rapidly." -- page 2

"However, Colonel Hathaway believes that the object did not resemble any aircraft, rocket or missile that he had ever seen." -- page 2

"Based on the interviews so far, the only testimony which would support the existence of flying saucers or radically unconventional aircraft is that of Colonel Hathaway." -- page 2

"In the meantime, however, the evidence does not appear sufficiently firm to warrant the conclusion that the Soviets have developed and have in operation a radically new type of aircraft." -- page 3