From BBC News:
A woman whose talent for maths helped foil German V2 bombs in World War II has published her life story.
Eileen Younghusband, 87, from the Vale of Glamorgan, received the coded message that the first V2 rocket had been launched against Britain.
She had the secret task while in the Women's Auxiliary Air Force (WAAF).
She said: "It was our information that gave air-raid warnings, it told the Royal Observer Corps where the aircraft were coming in."
Mrs Younghusband added: "The girls who worked on that section, many of them now nearly 90 years of age, have never felt that the work they did has been recognised, so this is one of the reasons that made me write this book."
Her book, Not An Ordinary Life has been published with the help of the Lifelong Learning centre at Cardiff University.