In the Shadows of Trust (Part 1)
Henri Déricourt and the Fragile World of the SOE
Henri Déricourt
Introduction
In The Color of Courage, he appears under his code name: Agent Gilbert.
He crosses paths with Lise de Baissac several times, organizing drops, receiving agents, managing the fragile choreography of arrivals and departures that kept her ARTIST network alive. In the world of the novel, he is part of the machinery. Necessary. And, at the time, not yet under suspicion.
Agent Gilbert’s real name was Henri Déricourt, a man whose role remains one of the most contested in the history of SOE’s French Section.
Long before I wrote The Color of Courage, I had come across his name. Historians still debate his loyalties. For the families of those arrested in 1943 — many of whom never returned — that uncertainty has never entirely lifted.
Lise de Baissac and her brother Claude were among the agents who survived.
This is the story of Henri Déricourt.
Background
Before the war, Déricourt was already a man moving between worlds. Born in 1909 in Aisne, he trained as a pilot and later flew mail routes across France. By the late 1930s, he had begun to intersect with intelligence circles, and, notably, with German contacts in Paris, including SD officer Karl Boemelburg.
He was known as charming, persuasive, and self-assured. Hugh Verity, one of the RAF pilots who flew many clandestine Lysander missions into France, later described him as a man who believed he could outsmart anyone, unscrupulous enough to take risks, and confident he would come out ahead.
His personal life reflected that same fluidity. Married, but not faithful, he maintained overlapping relationships. Among them was Juliette Aisner, who would later work with him inside the SOE network.
Nothing here proves anything. But it forms a pattern that is difficult to ignore.
The FARRIER Network — Paris
In January 1943, Déricourt was parachuted into France near Orléans. From there, he made his way to Paris.
His role was clear, and critical: air movements officer for SOE’s French Section. Under the codename “Gilbert,” he became responsible for organizing clandestine landings and departures for RAF Lysander aircraft operating out of Tempsford in England. His network was called FARRIER.
He identified landing fields across occupied France. Coordinated reception teams, managed signals, timings, movements. Over the following months, he organized dozens of those operations, bringing agents into France and taking others back to London and organising droppings.
But his role extended further as Déricourt also acted as courier. Letters, reports, and operational details passed through his hands, often written in clear language. In a system where wireless communication was dangerous and slow, this made him indispensable.
It also placed him at the intersection of multiple networks, including the PROSPER circuit led by Francis Suttill. In theory, these networks were meant to remain separate for security reasons. In practice, Déricourt connected them.
First Doubts
By the summer of 1943, concerns began to surface. For example, wireless operator to the PROSPER network, Jack Agazarian, raised alarms about security. Others followed. Messages were sent to London. The concerns were not always clear or consistent, but they were raised… and ignored.
At the same time, Déricourt maintained contact with German SD officers in Paris, including Karl Boemelburg. London was aware of at least some of these contacts, yet the Head of Section F, Colonel Buckmaster, trusted Déricourt blind. So no decisive action followed.
The Collapse of PROSPER
In June and July 1943, the PROSPER network began to collapse. Arrests spread rapidly across Paris. Key figures were taken, including Francis Suttill, Jack Agazarian and Gilbert Norman. Others followed. Among them two women: Andrée Borrel and Noor Inayat Khan. None of them survived.
Francis Suttill
Gilbert Norman
Jack Agazarian
Andrée Borrel
Noor Inayat Khan
At the time, no one in the field could see the full picture. That communications were compromised, and that German forces used captured radios to send false messages to London. Trust — already fragile — became almost impossible to navigate. And still, operations continued. Flights were organized. Messages carried. And Déricourt remained at the heart of it all.
After the War
Only after the war did the accusations against him take a clearer shape. German officers testified that information had reached them through an SOE contact. Documents had been copied. Messages intercepted. Déricourt’s name appeared repeatedly. He was arrested in 1946. Tried in Paris. And finally … acquitted. Not enough evidence.
An Unsettled Legacy
So despite the fact that Déricourt found an early death in Laos in 1962 flying for 'Air Opium', an international drug trade— which is again shady to say the least — there is no final verdict on his war escapades.
Some historians consider him a German agent. Others argue the evidence remains inconclusive. There are even theories — highly contested — that he may have been part of a larger intelligence strategy led by MI6.
What remains certain is the outcome. One of the most important, and skilfully led SOE networks in France, the PROSPER network, was destroyed. Hundreds were arrested. Many did not return. And at the centre of that system — trusted, necessary, and never fully investigated — was Henri Déricourt.
Conclusion
In the world of the SOE, trust was not optional. It was the system itself. And when that system failed — or was believed to have failed — the consequences were not abstract. They were measured in names. And in those who did not come back.
In the end, the question is not only what Henri Déricourt did — or did not do — but how much could ever be known in a world built on such secrecy, where the margin for doubt was as narrow as the strip of land on which a plane might land in the dark.
All agent photos, courtesy of Special Forces Roll of Honour.
Further reading
Robert Marshall, All the King's Men.
Jean Overton Fuller, Dericourt: The Chequered Spy
(in French), Bob Maloubier and Jean Lartéguy, Triple jeu. L'espion Déricourt,
Anthony Cave Brown, Bodyguard of Lies
