Jean Argles

Jean Argles (née Owtram) (7 November 1925 – 2 April 2023) was a Second World War code breaker and cipher officer. She and her sister Pat Davies are often referred to as "The Codebreaking Sisters". As a teenager, Jean Owtram joined the First Aid Nursing Yeomanry (FANY) in London, signing the Official Secrets Act 1911 and working in the Special Operations Executive (SOE). She contributed to the SOE's resistance network behind enemy lines, decoding messages from agents in the field. Promoted to the rank of officer at the age of 18, she worked in Egypt, Italy and Austria. In her later years she discovered that her sister had also been doing secret war work. Until Argles died in 2023, they were the last two sisters who had been required to sign the Official Secrets Act. The sisters appeared live and on radio and TV, relating stories of war time and co-publishing, in their nineties, a book titled Codebreaking Sisters: Our Secret War which became a best seller.

Early life Dorothy (née Daniel) and Carey Owtram had three children, Pat, Jean and Robert. Carey Owtram owned a cotton mill in Bolton, Lancashire, and the military-minded family lived in a large sandstone house in the countryside. After being home-schooled, the children were sent to boarding school for a few years. Jean Owtram returned home from boarding school at age sixteen and took a secretarial course in order to have a qualification suitable for employment. She was accepted as a code breaker. After two or three weeks of basic training and having signed the Official Secrets Act, she was charged in 1943 with decoding messages from agents abroad using a wireless-based, handwritten system that was changed daily. This was top secret work and she had to get off one stop early from the bus taking her to her job in Baker Street, from where the underground movements in Europe were managed, so that nobody should know where she worked.

Personal life Throughout the war, Argles wrote letters to her sister Patricia. Since both had signed the Official Secrets Act and had been involved in top secret work, it was not until they were elderly, and after the publication of material about the work of Bletchley Park, that the two sisters talked to each other about their war work and discovered the similarities in their war experiences. Their parents never knew anything about the top secret war work that their daughters had undertaken.

In 1968 Jean Owtram married Michael Argles, the University of Lancaster librarian. He died in 1988. Jean Argles died in 2023 aged 97, leaving her sister Pat and three stepchildren.

Details of Argles's life were recorded in Army Girls by Tessa Dunlop, published in 2021.

There are eight films about Jean Argles in the Veterans Video Archive.

Argles was featured on the Radio 4 obituaries programme Last Word.