Plans detailing the preparation that went into the Great Escape during the Second World War have been donated to the National Archives from a museum in North Yorkshire.

Eighty years ago today (Sunday, March 24) 76 airmen escaped from the Prisoner of War camp Stalag Luft III. Only three made it home and, of the remainder, 50 were murdered on Hitler’s orders.

A fictionalised version of the story was made into the 1963 film The Great Escape starring Steve McQueen, James Garner and Richard Attenborough.

York Press: Steve McQueen on screen in the Great Escape 1963 filmSteve McQueen on screen in the Great Escape 1963 film (Image: Supplied)

Decades later a new exhibition has opened at the National Archives in London to explore the human spirit during the Second World War and tell under-told stories of prisoners of war and civilian internees. 

A table of measurements used to plan tunnels used in the Great Escape - drawn by Bertram ‘Jimmy’ James - are on show at the exhibition which runs until July 21.

York Press: Jimmy James’ handwritten table of measurements for the tunnels used in the Great EscapeJimmy James’ handwritten table of measurements for the tunnels used in the Great Escape (Image: Eden Camp Modern History Museum)

The document has been donated to the exhibition from Eden Camp Modern History Museum near Malton.

Jimmy James made several escape attempts as a Prisoner of War, most famously in the Great Escape from Stalag Luft III.

York Press: Eden Camp Modern History Museum near MaltonEden Camp Modern History Museum near Malton (Image: Supplied)

He was one of ­­­hundreds of men - organised by the camp’s escape committee - involved in digging three tunnels, creating disguises, forging IDs and making 4,000 maps.

Jimmy was responsible for depositing sand from the tunnels under the seats of the camp theatre.

York Press: A secret message for MI9 concealed behind a photo of POW Guy Griffiths, sent from Stalag Luft III by another POW Peter Gardner to his motherA secret message for MI9 concealed behind a photo of POW Guy Griffiths, sent from Stalag Luft III by another POW Peter Gardner to his mother (Image: Eden Camp Modern History Museum)

Eden Camp’s collections and engagement manager Summer O’Brien said she was “incredibly proud” to see the exhibition open.

“After several months of hard work and planning, we are excited to see Jimmy James’ story get the national recognition he deserves,” she added.

York Press: Eden Camp marked the 80th anniversary of the Great Escape with a weekend event last monthEden Camp marked the 80th anniversary of the Great Escape with a weekend event last month (Image: Supplied)

Dr William Butler, a curator of the exhibition, said: “Many people will have heard the story of the Great Escape, thanks to the 1963 film, but our exhibition also reveals stories not yet told.

“Great Escapes is about the agency of individuals, their courage, resilience and ingenuity in the face of adversity.

York Press: Eden Camp marked the 80th anniversary of the Great Escape with a weekend event last monthEden Camp marked the 80th anniversary of the Great Escape with a weekend event last month (Image: Eden Camp Modern History Museum)

“We hope to show visitors how prisoners and internees made decisions in order to feel human, with community and activity groups being formed ‘behind the wire’, whether they be escape committees or choirs.”

Steve Burgess, head of events and exhibitions at the National Archives, added “We must thank our team of volunteers at the National Archives who catalogued around 200,000 War Office records which has allowed us to uncover new material and tell these stories for the first time."

Meanwhile, Eden Camp marked the 80th anniversary of the Great Escape with a weekend event last month.

Re-enactment group Axis-Allied showcased a real-life demonstration of the escape from Stage Luft III.

The event supported the families of the veterans involved, remembered each individual story, and highlighting the huge impact The Great Escape had on the war effort and morale of the country.