Career
She was succeeded by William B. Black, Junior. McNamara joined the National Security Agency in 1963 as a Chinese linguist. She rose through a number of analytic, operational, and managerial positions before leaving the Operational Directorate in 1983.
McNamara became the first woman to be named Deputy Director of Operations,in 1994.
In 1997 she became the second woman to be named the agency"s deputy director At the time she was one of the highest ranked women in the United States intelligence community.
She served as the National Security Agency"s Senior United States. Liaison Officer in London, England shortly before her retirement in 2003.