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    • Our Alumni

    Explore the stories of some of our most distinguished Guild members.

    Photo of Anne Keast-Butler

    Anne Keast-Butler

    Director of GCHQ

    Anne Keast-Butler, former Head Girl of the Perse School for Girls, is the Director of GCHQ with a career in national security including as Deputy Director General Mi5. She is Honorary Colonel of the Joint Service Signal Regiment, an Honorary Fellow of Merton College, Oxford (where she read maths after her time at the Perse School for Girls), and a champion for women in STEM.

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