Covers his education and career through the early 1970s. Youth in Fort Wayne, Indiana; education at Yale University in early 1940s; war-time involvement with Army Corps of Engineers; graduate work at Yale; early career with the U.S. Geological Survey (USGS). Other topics include: his geological field studies in the American Southwest; the Atomic Energy Commission-sponsored surveys for uranium deposits; initial involvement in lunar and planetary geology; the development of astrogeological studies within the USGS and NASA; Yale's Department of Geology; his mapping of the Red Desert, Wyoming; AEC nuclear explosion crater studies; Lick Observatory lunar mapping project; and the founding of astrogeological research within the USGS. Includes recollections of Falmouth summer study on Apollo, 1965; arguments over methodologies for lunar science; research on terrestrial meteorite craters; laboratory studies of high velocity impacts; and involvement in geologic training for astronauts, 1960. Also, impressions of Soviet science; involvement in Mariners 4, 6, 7, and 9; appointment as leader of imaging team of Mariner 9; becomes Branch Chief of Flagstaff branch of U.S. Geological Survey, early 1970s.