In an inspirational life Dame Kathleen, who's been deaf from the age of eight, overcame bigotry and ignorance to win a place at Oxford to study mathematics.
After taking her doctorate she became a leading educationalist determined to raise standards in maths. At 78 she built her own Observatory in the Lake District and at 86 she published a book on mathematical 'magic squares' - to international acclaim.
Now, at the age of 93, Dame Kathleen has just published her autobiography. Jenni talks to her about her extraordinary life.
To Talk of Many Things: An Autobiography by Kathleen Ollerenshaw is published by Manchester University Press, ISBN: 0719069874
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