1935
Born to Lorenz Walter and Sara (Hugo) C. in Kingsburg, CA.
1956
Earns a Bachelor of Science from Stanford University.
1957
Achieves a Master of Science from Stanford University; Is a geologist with the Utah Construction Company until 1958.
1958
Serves in the U.S. Army.
1960
Is a geologist at the Stanford Research Institute until 1961.
1961
Obtains a Doctor of Philosophy from Stanford University; Is a geologist with the U.S. Geological Survey in Denver, CO until 1971.
1962
Marries Susan Eloise Putnam on June 23.
1971
Is a geologist with the U.S. Geological Survey at Hawaii National Park until 1973.
1978
Publishes “The Pliocene Conant Creek Tuff in the Northern Part of the Teton Range and Jackson Hole, Wyoming.”
1980
Serves the U.S. Geological Survey as chief scientist for monitoring and scientific analysis of the 1980 eruptions of Mount Saint Helens.
1984
Is a review panelist for the Costa Rican Electrical Institute until 1986.
1987
Is a consultant to the United Nations in Nairobi, Kenya.
1987
Is chief of the U.S. Geological Survey’s Branch of Igneous and Geothermal Processes in Menlo Park, CA until 1991.
2001
Publishes “The Quaternary and Pliocene Yellowstone Plateau Volcanic Field of Wyoming, Idaho, and Montana.”
2003
Is named scientist emeritus/geologist of the U.S. Geological Survey.
2011
Publishes “Database for the Quaternary and Pliocene Yellowstone Plateau Volcanic Field of Wyoming, Idaho, and Montana.”
2021
Continues to contribute as a fellow of the Geological Society of America and the Mineralogical Society of America.
2021
Holds membership with the Amer. Assoc. for the Adv. of Science, Amer. Geophysical Union & Intl. Assoc. of Volcanology and Chemistry of the Earth’s Interior.