Famous American volcanologist who perished through the eruption of Mount St. Helens in Washington in 1980. He’s widely acknowledged with improving the technology of volcanic eruption prediction. He was originally a Journalism main at the University or college of Illinois at Urbana-Champaign but later on changed his main to Geology. His existence and work have already been depicted in imaginary movies like 1981’s St. Helens and in documentaries like 1980’s The Eruption of Support St. Helens. His parents are Thomas and Alice Johnston. He was by no means wedded. He and Thomas Jaggar are both world-famous volcanologists.