Harry Houghton and Ethel Gee betrayed naval secrets for 10 years
By Harlan Pryce ·
For ten years, Harry Houghton and Ethel Gee compromised Western efforts to track Soviet submarines, a breach that began during a posting at the British Embassy in Warsaw.
Harry Frederick Houghton was a clerk in the Admiralty Underwater Detection Establishment at Portland. In 1961, he was convicted of espionage, having used his position to pass classified material to the Soviet Union. According to the file's catalogue entry at the UK National Archives (KV 2/4380), Houghton did not act alone; he "conspired with another employee Ethel GEE" to facilitate the transfer of secrets.
For an intelligence analyst, the most striking detail in these summaries is not the crime itself, but the timeline. The catalogue records for KV 2/4380, KV 2/4482, and KV 2/4477 all emphasize a specific temporal window: the "consensus of opinion" was that Houghton had been operating as a spy from 1951 until the moment of his arrest. That phrase—the "consensus of opinion"—suggests a process of retrospective reconstruction by the Security Service, a calculation made after the fact to determine exactly how long the breach had existed.
"Conspired with another employee"
The partnership between Houghton and Ethel Gee represents a classic vulnerability in secure environments: the internal conspiracy. While Houghton held the rank of Senior Non-Commissioned Officer in the Royal Navy, his day-to-day role as a clerk gave him the necessary access to the sensitive technical data produced by the Underwater Detection Establishment. The nature of that material, focused on how the West tracked Soviet submarines, made it a high-priority target for Moscow.
The catalogue entries do not detail the specific documents Gee and Houghton moved, nor do they describe the methods of handover. They simply record the fact of the conspiracy and the resulting conviction in 1961. What is missing from these summaries is the human element—the motivation for a naval SNCO and a fellow employee to risk treason—but the archival record is not interested in motive, only in the duration of the compromise and the identities of the actors involved.
Warsaw and the British Embassy
The recruitment of an agent often leaves a trail that leads back to a specific geography. In Houghton's case, the catalogue entry for KV 2/4380 notes that he "had previously worked at the British Embassy in Warsaw." This detail provides the missing link for the 1951 start date. The embassy in Warsaw was a known hive of intelligence activity during the early Cold War, a place where the lines between diplomatic service and surveillance were perpetually blurred.
It is common in these records to see a pattern where an individual is compromised during a foreign posting and then "activated" or maintained once they return to a sensitive domestic post. By the time Houghton reached the Admiralty Underwater Detection Establishment at Portland, he was already a seasoned asset. The gap between his time in Poland and his arrest in 1961 suggests a decade of quiet, disciplined transmission of data, managed by handlers who understood the value of a clerk with access to naval acoustics.
Personal (PF Series) Files
The archival structure surrounding Houghton reveals how the Security Service categorized its enemies. The files KV 2/4380 and KV 2/4477 are part of the "Personal (PF Series) Files," specifically grouped under "SOVIET INTELLIGENCE AGENTS AND SUSPECTED AGENTS." This categorization places Houghton in a broader ledger of Cold War betrayals.
When viewed alongside related entries in the same series, the scale of the effort to track these agents becomes clear. For instance, the catalogue describes Arthur Alexandrovitch Adams (KV 2/3788) as "one of the most important Soviet espionage agents known to have operated in North America," a man tasked with penetrating the US atomic bomb project. Compared to a high-level operative like Adams, Houghton was a clerk—a cog in the machine. Yet, in the world of underwater detection, the clerk is often more dangerous than the scientist because the clerk controls the flow of the finished reports.
The records for Houghton are scattered across multiple entries—KV 2/4380, KV 2/4381, KV 2/4482, and KV 2/4477—often repeating the same summary of his conviction and the 1951 start date. This redundancy is typical of the Security Service's cross-referencing system, where different aspects of a case (financials, surveillance, intercepts) were kept in separate files but shared a common summary for quick reference.
One specific entry, KV 2/4477, is noted to include a photograph of Houghton. This visual record is the final piece of a dossier that tracks a man from the diplomatic circles of Warsaw to a naval base in England, and finally to a courtroom in 1961. The catalogue entries leave us with the dates and the conviction, but they leave open the question of how much of the Admiralty's underwater detection capability was compromised during those ten years of silence.