David Ray Mitchell

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(1898 - 1972)
https://issuu.com/psu-eme/docs/summer2005_eme_connection David Ray Mitchell (1898-1972) (’24 B.S. and ‘27 M.S., Mining Engineering) was inducted into the National Mining Hall of Fame on Saturday, September 25, 2004 in Las Vegas, Nevada. Mitchell was known for many years as the United States’ principal professor of coal preparation engineering. Through his teaching, publications and practice, Mitchell probably had a greater impact on coal preparation than any other American. His legacy lives on in his contributions to the education of generations of coal preparation engineers.
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