Background
Slack, John Louis was born on February 6, 1938 in Sandsprings, Oklahoma, United States. Son of John G. and Bertha F. (Husted) Slack.
Aerospace engineering executive
Slack, John Louis was born on February 6, 1938 in Sandsprings, Oklahoma, United States. Son of John G. and Bertha F. (Husted) Slack.
Bachelor of Science in Mechanical Engineering, Oklahoma State University, 1960. Bachelor of Science in Aerospace Engineering, University Colorado, 1962. Master of Science in Aerospace Engineering, University Colorado, 1962.
Postgraduate, Catholic University America, 1968.
Division chief, National Security Agency, Fort Meade, Maryland., 1965-1972; department manager, Martin Marietta Corporation, Denver, 1972-1973; vice president, Martin Marietta Corporation, Denver, 1976-1979; deputy assistant secretary of defense intelligence, Department Defense, Washington, 1973-1976; president, ZETEC Corporation, Arlington, Virginia, 1979-1985; president, ARDAK Corporation, McLean, Virginia, 1985-1989; also board directors, ARDAK Corporation, McLean, Virginia Chairman of the Board, president, chief executive office, Doctor of Business Administration Systems, Inc., Fairfax, since 1989. Board directors ZETEC Corporation, Arlington, Fingermatrix, Inc., North White Plains, New York.
Captain United States Air Force, 1960-1965. Member Sigma Tau, Pi Tau Sigma, Tau Beta Pi.
Married Shirley Jeanne Mataxis.