William Duff is the American author of the 1999 book ''A Time for Spies: Theodore Stephanovich Mally and the Era of the Great Illegals''. He is a former

FBI The Federal Bureau of Investigation (FBI) is the domestic intelligence and security service of the United States and its principal federal law enforcement agency. Operating under the jurisdiction of the United States Department of Justice, t ...

counterintelligence specialist. He is a graduate of

University of the South The University of the South, familiarly known as Sewanee (), is a private Episcopal liberal arts college in Sewanee, Tennessee. It is owned by 28 southern dioceses of the Episcopal Church, and its School of Theology is an official seminary of ...

and

Baylor School Baylor School, commonly called Baylor, is a private, coeducational college-preparatory school in Chattanooga, Tennessee. Founded in 1893, the school currently sits atop a 690-acre campus and enrolls students in grades 6-12, including boarding ...

References

American non-fiction writers Living people Year of birth missing (living people) Place of birth missing (living people) {{US-gov-bio-stub