Man: He Trapped Capone in 1949, Wilson also wrote other books. In 1940 his first book was The Archives, and in 1945 he wrote Doubtful Dollars both of which have to do with his illustrious career. Wilson died at the Georgetown University Hospital in Washington, DC on June 22, 1970, at the age of 83. References Further reading Melanson, Philip H. and Peter F. Stevens. The Secret Service: The Hidden History of an Enigmatic Agency. New York: Carroll & Graf Publishers, 2003. Roth, Mitchel P. Historical Dictionary of Law Enforcement. Westport, Connecticut: Greenwood Press, 2000. Spiering, Frank. The Man Who Got Capone. Indianapolis: Bobbs-Merrill, 1976. Wilson, Frank J. and Beth Day. Special Agent: A Quarter-Century with the Treasury Department and the Secret Service. New York: Holt, Rinehart and Winston, 1965. Kelly, Robert J. Encyclopedia of Organized Crime in the United States. Westport, Connecticut: Greenwood Press, 2000. Phillips, Charles and Alan Axelrod. Cops, Crooks, and Criminologists: An International Biographical Dictionary of Law Enforcement Updated Edition. New York: Checkmark Books, 2000. Sifakis, Carl. The Mafia Encyclopedia. New York: Da Capo Press, 2005. External links Frank Wilson papers at the University of Wyoming - American Heritage Center 1887 births 1970 deaths American law enforcement officials United States Secret Service agents Directors of the United States Secret Service