Background
Grotenhuis, Marshall was born on October 17, 1918 in Oostburg, Wisconsin, United States. Son of William and Isabel Grotenhuis.
Grotenhuis, Marshall was born on October 17, 1918 in Oostburg, Wisconsin, United States. Son of William and Isabel Grotenhuis.
Bachelor of Science in Science and Mathematics, Milwaukee State Teachers College, 1941. Master of Science in Physics and Mathematics, Marquette University, 1948.
Teacher Wakefield High School, Michigan, 1941—1942. Instructor physics Marquette University, Milwaukee, 1947—1948. With Argonne National Laboratory, Downers Grove, Illinois, 1949—1971, director Office of Industrial Cooperative, 1965—1967, superintendent central shops department, 1967—1970, senior management engineer, 1970—1971.
Environmental project manager United States Nuclear Regulatory Commission, Rockville, Maryland, 1971—1975, operating reactor project manager, 1976—1988. Member International Atomic Energy Agency Shielding Panel, 1964. Visiting lecturer nuclear engineering department University Wisconsin.
Lecturer in field; chairman Illinois State Technology Service Board. Sergeant United States Army Air Force, 1942-1946.
Commissioner Boy Scouts American, since 1959. Member Gaithersburg History Association, since 1980. Member of Parent-Teachers Association (life), American Nuclear Society (board director, editor Nuclear Structural Engineering, editorial advisory committee Nuclear Technology, Distinguished Service award, Meritorious Service award, Special Achievement award), Sigma Xi, Sigma Pi Sigma, Delta Chi Sigma.
Married Marilynn Johnson. Children: Susan Kidd, Alan, Judith, Brian.