Don U. DeereProfessor

Junior mine engineer Phelps Dodge Corporation, Arizona, 1943-1944. Mine engineer, explorations department Potash Company American, New Mexico, 1944-1947. From assistant professor to associate professor Civil Engineering Colonel Advertising & Marketing University Puerto Rico, 1946-1950, head department, 1950-1951. Partner Foundation Engineering Company, Puerto Rico, 1951-1955. From associate professor to professor Civil Engineering and Geology University Illinois, Urbana, 1955-1976. Affiliate professor Department Geology and Civil Engineering University Florida, since 1972. Consultant National Academy of Sciences. President International Society Rock Mechanics, 1968-1973. Chairman United States National Committee on Tunneling Technology, 1972. International consultant hydroelectric engineering, since 1972. Consultant Geologic Society of America, 1976-1979.