Lawrence H. Kumamoto MS ’73, PhD ’77 of Carson City, Nev., died October 4, 2011. Shortly after his birth in 1945, his family moved to San Francisco, Calif., where he spent his formative years. He earned a bachelor’s degree in geophysics from the University of California at Berkeley in 1967 and was then drafted into the Army, serving the next two years in the Signal Corps as a meteorological observer. At Mines, Lawrence completed his master’s degree and doctorate in geophysics, and then worked for Microgeophysics, D’Apollonia Engineering, and Peabody Coal, the latter as chief geophysicist. He landed in London with BP, staying with the company for many years until returning to the U.S. to start his own business, Ronin Technical Services, where he remained until retiring in 2007. Lawrence enjoyed travel; favorite destinations included Scotland, Iran, Algeria, Tobago, Venezuela, Indonesia and the north slope of Alaska. He is survived by his sister, Emyko Sakakura.