Yale University

William K.S. Tobin, former dean of the National Cryptologic School

William K.S. Tobin, former dean of the National Cryptologic School

William K.S. Tobin, a former dean of the National Security Agency’s National Cryptologic School and a Middle East expert, died of heart failure Saturday at his Ellicott City home. He was 79.

The son of Harold James Tobin, a Dartmouth College professor, and Margaret Gilfillan, a homemaker, William Kilborne Stewart Tobin was born in Hanover, N.H., and raised in Manhattan, where he graduated in 1955 from the Collegiate School.

He earned a bachelor’s degree in ancient history in 1960 from Yale University and, after enlisting in the Army, attended the Defense Language Institute in Monterey, Calif., where he became proficient in Turkish.

After being discharged in 1965, Mr....

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