Ernest R. Davidson, born October 12, 1936 in Terre Haute, Indiana, was Professor of Chemistry, University of Washington, Seattle, WA, US (1961 - 1984, 2002 - 2020) and Indiana University, Bloomington, IN, US (1984 - 2002). He graduated from Wiley High School, Terre Haute and Rose Polytechnic Institute (BS Chemical Engineering), Terre Haute, and Indiana University (PhD Theoretical Chemistry), Bloomington, IN. His name is associated with both the Davidson correction and the "Davidson diagonalization" method which he applied to configuration interaction methods. He is the author of over 400 publications, including Reduced Density Matrices in Quantum Chemistry, Academic Press, 1976. He has been awarded many honors, including member of the International Academy of Quantum Molecular Science (1981) and Fellow of the American Association for the Advancement of Science (1985) and the National Academy of Sciences (1987). In 2001, he was awarded the National Medal of Science. References His International Academy of Quantum Molecular Science page External links His home page containing all his publications. 1936 births Living people Members of the United States National Academy of Sciences National Medal of Science laureates Members of the International Academy of Quantum Molecular Science Fellows of the American Physical Society Theoretical chemists Rose–Hulman Institute of Technology alumni Schrödinger Medal recipients Computational chemists