Audrey Ruth Churchill (née Briggs) (1920–2005) was a cryptanalyst at Bletchley Park during the Second World War. She graduated in Modern Languages from Cambridge and, as an expert in German, worked as a member of the Z Watch, which translated the decrypted messages.
She married Oliver Churchill in 1946 and her oldest son is Toby Churchill.
References
Audrey Ruth Briggs Wikipedia(Text) CC BY-SA