Student, Los Angeles City College, 1940. Student, California Institute of Technology, 1947. Student, Yale University, 1944.
Student, Harvard University. Student, Massachusetts Institute of Technology. Student, Army Electronics Training Center.
Bachelor of Science in Mechanical Engineering, Stanford University, 1950. Master of Business Administration, Stanford University, 1952.
Trainee, Douglas Aircraft Company, Santa Monica, California, summers 1941-1943; member of staff, Los Alamos (New Mexico) Science Laboratory, 1947-1949; chief engineer, Rutishauser Corporation, Pasadena, California, 1952-1953; assistant to president, Unitek Corporation, El Monte, California, 1953-1955; sales manager, Donner Science Company, Concord, California, 1955-1957; sales manager, Shand & Jurs division GPE, Berkeley, 1957-1958; vice president sales, Advanced Instruments, Richmond, California, 1958-1960; sales manager, Gilliland Instruments, Oakland, California, 1960-1962; partner, Krueger & Smith, Berkeley, 1969-1972; founder, president, Tetra Valves, Inc., Berkeley, 1972-1978; owner, proprietor, Krueger Manufacturing-Engineering, Lafayette, California, since 1962.
Donor portraits of the United States President George Bush and Barbara Bush, White House, Washington, 1995, portrait of the United States President George Bush, National Portrait Gallery, Washington, 1995. Vice president California Republican Assembly, 1983-1984. With United States Army Air Force, 1942-1947.
With United States Air Force Reserve, 1947-1953. Member Institute of Electrical and Electronics Engineers (life), American Association for the Advancement of Science, American Society for Testing and Materials, National Rifle Association (life, endowment), American Society for Metals International (life), American Defense Industrial Association (life), James Smithson Society/Smithsonian Institution (Patron award Benefactors Circuit 1991), National Museum American Indian (charter), Colonial Williamsburg Foundation, Raleigh Tavern Society, United States Navy League (life), Spencer Baird Society, California Rifle and Pistol Association (life), California State Sheriffs Association, Contra Costa County Sheriffs Posse.
Married Elizabeth Westerfors, September 10, 1949. Children: Karen Elizabeth, Clarence Frederick (deceased), Roger Carl (deceased), Bruce Wayne, Glen Herren.