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Mavis Batey, MBE, was an English code-breaker during World War II. Her work at Bletchley Park was one of the keys to the success of D-Day, later becoming a campaigning garden historian and author.
She had a keen interest in the novels of Lewis Caroll, producing several books on the subject, as well as many books about her work at Bletchley.
She died in 2013.