One of the leading female code-breakers at Bletchley Park during World War II.
Awarded an MBE for her work on preservation and conservation of gardens.
She was in college studying German literature, when she was recruited for the code-breaking project. Her work helped the Allies cripple the Italian navy in 1941 and assisted the 1944 Normandy invasion.
She met her future husband, a mathematician, at Bletchley Park. Their children knew nothing of their parents' wartime work until many years later.