Charlotte Webb, who as a young woman helped code breakers decipher enemy signals at Britain’s top-secret Bletchley Park, died on Monday. She was 101. Her death was confirmed by the Women’s Royal Army Corps Association and by the Bletchley Park Trust. Ms. Webb, known as Betty, was 18 when she joined the Auxiliary Territorial Service, the women’s branch of the British Army, and was assigned to work at the base in Buckinghamshire where Bletchley Park was located. From 1941 to 1945, she helped in the decryption of German messages, and also worked on Japanese signals. Full Obituary