Bachelor of Science in Mechanical Engineering with high honors, University Illinois, 1949. Master of Science, University New Mexico, 1964. Doctor of Philosophy, University New Mexico, 1974.
Engineer, General Electric Company, Schenectady, New York, 1949-1955; chief engineer, Logan Engineering Company, Chicago, 1955-1959; senior project engineer, American Car and Foundry Industries, Albuquerque, 1959-1967; member technical staff, Sandia laboratories, Albuquerque, 1967-1972; associate professor, U. New Mexico, Albuquerque, 1974-1978; manager nuclear waste programs, Los Alamos Technology Associations, 1978-1981; president, S.E. Logan and Associations, Inc., Santa Fe, since 1981. Member, chairman independent review commission on tranuranic wastes Department Energy, 1983-1988.
Ward chairman Bernalillo County Republican Committee, 1964-1974, chairman, 1968-1972. Precinct chairman Santa Fe County Republican Committee, since 1984. 1st lieutenant United States Army Air Force, 1943-1946, PTO. Fellow American Institute of Aeronautics and Astronautics (associate).
Member Institute of Electrical and Electronics Engineers (working group on safety envaluations radioactive waste management 1980-1981), American Nuclear Society, Society Risk Analysis.
Married Marjorie Louise Behn, January 28, 1947. Children: David Craig, Catherine Jean.