Mathematics Syracuse University, 1940-1942, Brown U., 1942-1945. Assistant professor, chairman departments mathematics and physics, Keuka College, 1945-1946. Instructor mathematics Rensselaer Polytechnic Institute, 1946-1947.
Instructor mathematics Rutgers University, 1947-1951. Mathematician Laboratory Electronics, Boston, 1951-1952. Mathematician Lincoln Laboratory, Massachusetts Institute Technology, 1952-1954.
Staff Biophysics Research Laboratory, Peter Bent Brigham Hospital, Harvard Medical School, Boston, 1954-1962, associate staff medicine, 1954-1967, assistant professor mathematics biology, 1960-1967, director div. mathematics biology and biomathematics laboratory, 1962-1967. Assistant professor mathematics biology, department biostatistics Harvard School Public Health 1957-1960. Professor biomathematics North Carolina State University, School Medicine and Public Health University of North Carolina, 1967-1969.
Professor, department chairman mathematics medicine Medical College Ohio, Toledo, 1969-1972. Professor mathematics medicine Department Community Medicine, professor biomathematics Department Surgery, Rutgers Medical School, 1972-1975. Independent investigator Howard Hughes Medical Institute, 1957-1967.
Director research and training grants biomathematics National Institutes of Health, 1962-1967. Member President Advisory Board Biometric Society, 1966-1969. Lecturer in field.
Member President Advisory Board Biometric Society, 1966-1969. Member American Mathematics Society, American Statistical Association, Society Industrial and Applied Mathematics, Society General Systems Research, Biometric Society, American Institute Biological Sciences, American Association for the Advancement of Science, Association American Medical Colls., American Public Health Association, Mathematics Association American, New York Academy Science, Society Mathematics Biology (founder), Ohio Public Health Association Managing editor Bulletin Mathematics Biology.
Born August 11, 1919