Codebreaker Girls

A Secret Life at Bletchley Park

Jan Slimming

Date Published :
March 2023
Publisher :
Pen and Sword
Contributor(s) :
Sir Dermot Turing
Illustration :
50 black and white illustrations
Format Available    QuantityPrice
Binding. : Hardback
ISBN : 9781526784117
Pages : 352
Dimensions : 9.25 X 6 inches
Stock Status : In stock
Binding. : Paperback
ISBN : 9781526797100
Pages : 352
Dimensions : 9.2 X 6.1 inches
Stock Status : Not Yet Published. Available for Pre-Order
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“What would it be like to keep a secret for fifty years? Never telling your parents, your children, or even your husband?”

Codebreaker Girls: A Secret Life at Bletchley Park tells the true story of Daisy Lawrence. Following extensive research, the author uses snippets of information, unpublished photographs and her own recollections to describe scenes from her mother’s poor, but happy, upbringing in London, and the disruptions caused by the outbreak of the Second World War to a young woman in the prime of her life.

The author asks why, and how, Daisy was chosen to work at the Government war station, as well as the clandestine operation she experienced with others, deep in the British countryside, during a time when the effects of the war were felt by everyone. In addition, the author examines her mother's personal emotions and relationships as she searches for her young fiancée, who was missing in action overseas. The three years at Bletchley Park were Daisy's university, but having closed the door in 1945 on her hidden role of national importance — dealing with Germany, Italy and Japan — this significant period in her life was camouflaged for decades in the filing cabinet of her mind. Now her story comes alive with descriptions, original letters, documents, newspaper cuttings and unique photographs, together with a rare and powerful account of what happened to her after the war.

About The Author

Jan Slimming is a publishing professional with a former career in London’s educational and international publishing industry before moving to America with her husband and young family. This is her first book. As Director of three companies, she has also chaired committees and fund-raising initiatives in aid of children’s education, before delving into historical research. Jan was six when she first heard of Bletchley Park, but it was decades later that she was compelled to research and write about this little-known part of her mother’s life. Jan is a member of the Atlanta Writers Club (Established 1914), and an active member of her community both in local events and WWII matters, with her twin sister, with whom she also writes. Jan has first-class qualifications from the Royal Society of Arts in English, Business and Publishing from Wimbledon College and the University of the Arts London (formerly London College of Printing and Graphic Arts). She lives in Atlanta with her husband and growing family.

Sir John Dermot Turing is a British solicitor and author. Turing is the nephew of cryptologist Alan Turing and became a trustee of Bletchley Park in 2012 where his uncle famously worked during World War II as well as also being a trustee of the Turing Trust. He was awarded the Knight’s Cross of the Order of Merit of the Republic of Poland in 2020 for highlighting the role of Poles in breaking the Enigma code.


"...a beauty of a history of some of the codebreaking girls who helped save us during the Second World War."

- Books Monthly

"For anyone interested in the birth of Enigma, its growth and development, and how a simple young lady from the streets of downtown London mastered it, then assisted in codebreaking to achieve innumerable victories for the Allies to win World War II in Europe, this is an absolute must read."

- Argunners

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