Lloyal O. Bacon, 1915-2008, was a geophysicist at Michigan College of Mining and Technology (now Michigan Technological University) in Houghton, Michigan from 1949 to 1978. Lloyal Bacon earned a BS in Geological Engineering in 1941 from the University of Minnesota and served in the U.S. Navy Department, Underwater Ordinance. Subsequently, he worked for the U.S. Bureau of Mines, Butler Brothers Mining Co., and Pennsylvania State College (now Pennsylvania State University) as a geophysicist. In 1948, he received an MS degree in geophysics at Penn State. He remained there for another year on a Ph.D program. After the department faculty left, he took employment as a geophysicist at MTU (at that time known as the Michigan College of Mining and Technology) in the fall of 1949. He remained at MTU until his retirement in 1978. Bacon originally worked with the physics department until he moved to the Department of Geological and Mining Engineering and Sciences as the geophysics department expanded. Active in the field, Lloyal did consulting work in mining geophysics for many companies for over 40 years, especially Calumet and Hecla, Inc. in developing a system for detecting veins of native copper.