Bachelor of Science in Metallurgy, Massachusetts Institute of Technology, 1951. MMetE, Rensselaer Polytechnic Institute, 1953. Professional Engineering Degree (PE), Columbia University, New York City, 1956.
From engineer to chief project engineer Curtiss-Wright Corporation, Wood Ridge, New Jersey, 1956-1963. Manager materials laboratory Melpar, Falls Church, Virginia, 1964-1970. President, chairman board directors Artech Corporation, Chantilly, 1970-1994.
President, legal consultant Henry Hahn Associates, Fairfax, from 1994.
Chairman North Pine Ridge Civic Association, Fairfax, since 1990. Fellow American Society Metals (chairman Washington chapter 1983-1994). Member American Welding Society (member technical advisory committee since 1992), International Standards Organization (chairman testing of welds since 1996).
Married Edythe Marilyn Shotz. Children: Anita Caryl, Jeffrey Stuart.