Official Secrets and Computational Science – Investigating Bletchley Park with Professor Brian Randell

Although the name “Bletchley Park” is recognisable to many today, the nature of the important work carried out by codebreakers stationed there during the Second World War was not fully understood until relatively recently.

Emeritus Professor of Computing at Newcastle University, Brian Randell’s interest in the early history of the computer led him to publish a paper in 1972 entitled “On Alan Turing and the Origins of Digital Computers”. In this paper, Professor Randell outlined his ongoing investigation into the secretive work carried out by a team of mathematicians and logisticians at Bletchley Park during the Second World War. This work aimed to crack German code and would ultimately result in the creation of Colossus, the first large-scale electronic computer. Professor Randell was particularly interested in the role played by Alan Matheson Turing (1912-1954), as well as that of John von Neumann (1903-1957), Tommy Flowers (1905-1998) and others at Bletchley Park during this time.

Leaflet for “The Origins of Digital Computers” by Professor Randell, published in 1973 [Randell, (Professor Brian) Archive, BR/3/20/3/1]

At the time, the details of Turing and his colleagues’ contributions to the war effort remained largely secret, with information pertaining to Bletchley still classified. As a result, Turing was instead known within scientific communities for his post-war work at the National Physical Laboratory on the Automatic Computing Engine, completed in late 1945, and at Manchester University.

In her 1959 biography of Alan, his mother, Sara Turing, wrote that during the war her son had been “…taken on as a Temporary Civil Servant in the Foreign Office, in the Department of Communications”, but stated that “no hint was ever given of the nature of his secret work, nor has it ever been revealed”. Equally uncertain was the progress that had been made at Bletchley Park regarding the development of computational machines, with the assumption being that the war largely delayed work on these sorts of devices.

Newcastle University Special Collections and Archives hold the papers of Professor Brian Randell, which span over four decades and document his professional and academic life. Included in this archive are multiple folders of correspondence relating to Professor Randell’s work on the early modern computer. These include the original correspondence from Professor Randell’s ongoing investigation into what was, at the time, still very much a secret part of British history. The secrecy surrounding British cryptographic work during the Second World War was such that a number of the responses Professor Randell received were written “in very guarded terms” so as to avoid breaking the Official Secrets Act.

The work and persistence of Professor Brian Randell would eventually result in his invitation to the Cabinet Office in 1975 to discuss the first official release of information about Colossus. After this meeting, he wrote to Turing’s mother, Sara, that “the government have recently made an official release of information which contains an explicit recognition of the importance of your son’s work to the development of the modern computer”.

Professor Randell’s 1977 New Scientist magazine article on Bletchley Park and The Colossus [Randell (Professor Brian) Archive, BR/3/20/5/2]

During the Cabinet Office meeting, Professor Randell was told that the Government would facilitate interviews with leading members of the Colossus Project, in order to allow him to write an approved official history of it.

While official recognition of all who worked at Bletchley Park is important, Turing’s legacy has specific relevance for LGBTQ+ History Month. In 1952, Turing reported a burglary of his home to the police. During the investigation, he told police officers that a man with whom he had been having a relationship, Arnold Murray, had been acquainted with the thief. As homosexuality was illegal in the United Kingdom, Turing was charged with “gross indecency” under Section 11 of the Criminal Law Amendment Act 1885 and, after submitting a guilty plea, was given the choice between imprisonment and probation. Accepting probation, Turing was made to undergo hormonal treatment designed to reduce the libido, also known as chemical castration.

His conviction also led to the removal of his security clearance, meaning he was now barred from employment by the British Government, who had engaged him in cryptographic consultancy work at GCHQ following the war. This decision was influenced in part by the recent spying scandal involving Guy Burgess, a British diplomat and double agent who had been passing official secrets to Russia. The actions of Burgess led to an investigation into security standards across the Foreign Service, and his sexuality led to “a highly confidential enquiry in the Foreign Office about the security risks of employing homosexuals”. When the Sexual Offences Act was passed through Parliament in 1967, a bar of any homosexual individuals working for the Foreign Office was imposed and was only repealed in 1991.

Alan Turing died at the age of 41 by in 1954 at his home in Wilmslow, England. An inquest at the time ruled the cause of death to be suicide, however this has been disputed both by Turing’s mother, Sara, and more recently, academic Professor Jack Copeland, who believes Turing’s death to have been an accident caused by carelessness during scientific experiments electrolysing solutions of potassium cyanide.

While Professor Randell’s persistent research helped to shed light on the scientific contributions of Turing and his colleagues at Bletchley Park, it was only in 2013 that Alan Turing was granted a posthumous royal pardon for his conviction of Gross Indecency. Three years later, the British Government introduced “Turing’s Law”, which allowed for the pardoning of 75,000 other men and women convicted of homosexuality under historic anti-gay laws in Britain.

Copy of a photograph taken in 1951 of Alan Turing [Randell (Professor Brian) Archive, BR/3/21/4/3

As LGBTQ history month draws to a close, we have an opportunity to remember a historic member of the queer community who had a significant impact on both the trajectory of world history and the advancement of computing science. Turing has, in recent years, become the focus of a biopic (2014’s The Imitation Game) and the face of the fifty-pound note, whilst a museum at Bletchley Park commemorates and informs the public of the crucial scientific work carried out there during the Second World War. Yet it is important to bear in mind that this history is one that has only recently been revealed, much to the credit of researchers and academics such as Professor Brian Randell, who have allowed Turing and his colleagues to take their respective places in British, scientific and queer history.

More information about the Professor Brian Randell archive can be found here.

Watch Professor Brian Randell discuss his work relating to Colossus at the National Museum of Computing in 2013

Sir Winston Churchill

24th January 2025 marks 60 years since the death of Sir Winston Churchill. He was born 30 November 1874 at Blenheim Place, Oxfordshire, Winston Churchill went into politics after serving in the army.

Churchill served as a Member of Parliament from 1900 – 1922, 1924 – 1964, first for the Conservatives, then the Liberal Party, before defecting back to the Conservative Party. Whilst in office for the Liberal Party during Herbert Henry Asquith’s Government he was part of the Cabinet with North East MPs Walter Runciman and Charles Philips Trevelyan. Churchill and Trevelyan were already acquainted, having both attended Harrow School at the same time.

Portrait of Winston Church as part of the 1909 Cabinet when he was appointed President of the Board of Trade [Runciman (Walter) Archive, WR/30/2]

Walter Runciman was appointed President of the Board of Education and Charles Trevelyan the Parliamentary Secretary to the Board of Education at that time.

In a letter to her mother, Mary Trevelyan, known as Molly wrote –

I foresee that he is going to be rather the friend of the future. I like him quite much and he is very keen to be pleasant to me: he was a friend of Charles before we married.”

An extract of a letter from Mary Trevelyan to her mother of her liking to Winston Churchill [Trevelyan (Charles Philips) Archive, CPT/6/1/5/2]

In the immediate years before World War I, Churchill was appointed Home Secretary, then given the First Lord of the Admiralty post. He resigned his government post in 1915 and saw active service on the Western and Belgian Fronts.

After his military service Churchill returned to Government, first as Minister of Munitions, then Secretary of State for War and Air, before becoming Secretary of State for the Colonies.

As Secretary of State for the Colonies Winston Churchill was part of the delegation at the Cairo Conference in 1921.  This conference included discussion on British control in the Middle East and would eventually lead to the creation of Iraq. The other delegates were T. E. Lawrence, Major Hubert Young, Herbert Samuel, Sir Percy Cox, Ja’afar al’Askari, Sir Hugh Trenchard, Sir Geoffrey Salmond, Sasun Hasqail, Geoffrey Archer, Field Marshal Edmund Allenby.

Gertude Bell, T. E. Lawrence, Winston Churchill, Clementine Churchill at the Cairo Conference 1921 [Bell (Gertrude Archive, Gertude Bell, T. E. Lawrence, Winston Churchill, Clementine Churchill at the Cairo Conference 1921. GB/PERS/F/003]

Churchill lost his seat in the 1922 election; however, he was one of 50 members to get the Order of the Companions Honour. In 1924 he stood as Member of Parliament for Epping as the Conservative candidate and was appointed Chancellor. In the 1929 election Winston retained his seat, however it was the Labour government who were the majority party.

During the 1930s Winston Churchill was not part of the cabinet, although he retained his seat. He spoke about issues of the day, The India Question, The Rise of the Nazi Party, and the Abdication Crisis where he supported Edward. He was against the appeasement trip to Czechoslovakia.

Churchill returned to the cabinet on the day World War II broke out as First Lord of the Admiralty, then after Neville Chamberlain resigned became Prime Minister of a coalition government in 1940.

During the Second World War, Winston Churchill and became known for his rousing and patriotic speeches which were commented on.

Extract of a letter written by Charles Philips Trevelyan to his wife Mary, known as Molly about Churchill’s speech and how World War II is going –

So Churchill has said “Let there be light” and there was light.

So the ? won’t come. But what mistaken hope to reckon on real peace by December. There is no break yet in any of the defences of Germany itself. I reckon three months of the most terrible fighting and then a year of chaos before anything like an end can be.” 

Extract of a letter written by Charles Philips Trevelyan to his wife, Mary, about Churchill’s speech and how World War II was going –[Trevelyan (Charles Philips) Archive, CPT/3/110/26.

Transcriptions and audio to his War Speeches can be found on the following webpage America’s National Churchill Museum | Winston Churchill’s Speeches and Writings

Churchill and the Conservatives lost the election in 1945; however he remained as leader. In 1951 the Conservatives won the election with Winston as Prime Minister, however he was not in good health and stood down as Prime Minister in 1955. He remained as an MP until 1964.

Over the previous years Winston Churchill had suffered several strokes with the final one being on 10th January 1965. He died 3 weeks later and was given a state funeral on 30th January 1965.   

Some say he’s the Greatest Briton that ever lived.

Professor Duff’s 25th December 1942 Diary Entry #ChristmasCountdown Door no.11

25th December 1942

25th December 1942 diary extract from Professor Duff

Extract from Professor Duff’s 1942 diary entry. Professor Duff explains what he did on Christmas day and of the assassination of admiral Darlan during World War II.

FRIDAY 25           Christmas Day – Bank Holiday in U.K.

“Sunday” bells allowed to ring for Christmas everywhere. We exchanged presents and greetings. Damp most of the day. Another considerable mail came to us. At a short Xmas service Dr. Bacon addressed his congregation on the significance of the shepherds going to Bethlehem, Luke 2.15

Christmas midday dinner at the grand Hotel. 2-3 Wireless greetings to and from allies all over the world & “peeps” into Christmas parties. 3pm. The King spoke urging brotherhood. He was much less hesitating than usual. We made an early black-out, & by 3.45 we all four were at the Anderstones for tea. Home again n time for 6 o’clock news – chief item this morning at 9 a.m. was the assassination in Algiers of admiral Darlan who came over recently to the allied side though had unfairly at an earlier time slandered Britain as hostile to them the “generous” Hitler!!

The Battle of Britain Ends – October 2015

31 October 2015 marks the 75th anniversary of the end of the battle of Britain.

The Battle of Britain was an air campaign launched by the German Air Force, Luftwaffe against the UK in the summer and autumn of 1940. Hitler had already swept through France and forced the British army out the European mainland. In order to finally invade Britain, Hitler needed to launch a final air strike to wipe out Britain’s RAF defenses.

Though the RAF Fighter Command had only 640 aircraft against the 2600 aircraft of the Luftwaffe, with the support of Bomber Command and Coastal Command, the RAF were victorious. Nazi Germany turned their attention to bombing British cities in the attack known as The Blitz, but failure in the Battle of Britain forced Hitler to cancel his Operation Sea Lion; an amphibious and airborne invasion of Britain.

Sir Robert Pattinson

Sir Robert Pattinson

In our special collections holdings at Newcastle University we hold the letters of Sir Lawrence Pattinson, an RAF pilot who fought during World War I and World War II. After the outbreak of World War II in 1939, Sir Lawrence was appointed Air Officer Commanding-in-Chief, Training Command and Flying Training Command in April 1940. By January 1945, Sir Lawrence was created Knight Commander of the Order of the British Empire as part of the New Year’s Honors.

This month’s treasure is a letter from Sir Archibald Sinclair thanking Sir Lawrence Pattinson, on behalf of King George VI, for his long and valuable service in the RAF (dated 20th April, 1945).

GB 186 LAP/1/4/1 – Pattinson Papers

GB 186 LAP/1/4/1 – Pattinson Papers

Japanese Paper Balloon Bombs – January 2013

Diagram of a Japanese Fire Bomb from Japanese Paper Balloon Bombs:
Diagram of a Japanese Fire Bomb from Japanese Paper Balloon Bombs: The First ICBM
Henry Morris, Bird and Bull Press, 1982 (Rare Books, RB623.451 MOR)

Necessity is often said to be the mother of all invention. Sadly, with war, this often came in the form of scientific advances devised to kill and spread panic with more efficiency and devastation. During World War II, Germany’s most important technical achievement was the development and use of the V-2 missile; an unmanned, liquid propellant rocket capable of reaching overseas targets and the first known man-made object to enter space. Completed by July 1944, they were responsible for the death of 2,754 civilians in England alone and had an even greater propaganda value as a weapon coveted by the allies and feared by citizens at risk. However, they were not the only Axis power to launch such terrible initiatives, with Japan even outdoing the V-2 in terms of spanning continents to become the first truly inter-continental ballistic missile (ICBM), albeit in a less successful, more rudimentary way…

This annotated sketch, enclosed in a book explaining the history behind them, depicts a prototype fire bomb or füsen bakudan, which Japan developed during World War II as a means of spreading terror, starting fires and inflicting casualties on North American soil. After the disastrous defeat of their Navy at the battle of Midway (4 – 7 June 1942), the Japanese Military were intent on causing a similar psychological victory over the U.S. Over the next two years, the Imperial Japanese Army’s elite Noborito Laboratory, staffed by over 1000 of the country’s top scientists, engineered and tested incendiary and anti-personnel devices attached to 32 foot balloons made of Japanese handmade paper. These were capable of travelling on the trans-Pacific upper wind currents or ‘jet streams’ over the Pacific Ocean.

Considerable research was carried out to allow the balloons to maintain the minimum altitudes needed during the estimated 60 hours and over 6,200 miles it took to reach America. An aneroid barometer detonated explosives to release sandbags when they descended too far. When all these ballasts had dropped, the weapon was presumed to be over its target and the bombs were released. Rubberized silk was trialled for the balloons, but found to be much too heavy, whereas the light but exceptionally strong paper was more successful.

From November 1944 to April 1945, more than 9000 füsen bakudan were launched. It is estimated 1000 reached America; roughly the success rate of 10% predicted by Japan. However, the U.S. authorities, fearful of the panic they would spread and not wanting the Japanese to know how successful they had been, ordered radio stations and newspapers to give no publicity to such incidents. Although damage was minimal, six Americans, a pregnant Pastor’s wife and five Sunday school children did lose their lives in Oregon on 5th May 1945 when they investigated a downed balloon and the still attached bomb exploded; the only deaths due to enemy action to occur on mainland America during World War II. Ironically, this tragedy took place on land owned by the Weyerhaeuser Company, who were papermakers.

This diagram and the accompanying book was one of only 375 copies printed at the Bird and Bull Press, Pennsylvania, founded by Henry Morris, a printer and papermaker, in 1958, specializing in the art, craft, and history of papermaking.