Dr. Walsh is President of the Oregon-based consulting company, International Maritime Incorporated (IMI) that he founded in 1976. From 1948 to 1975 he served in the U.S. Navy. During 14 years at sea, including Korean and Vietnam wars, he was in submarines and commanded one in the Pacific Fleet from 1968-70. Navy shore duty assignments were in ocean-related science and technology.
Retiring in 1975, he joined the faculty of the University of Southern California. At USC he established and directed The Institute for Marine and Coastal Studies as well as being appointed professor of ocean engineering. In 1983, he left the University to work for IMI full-time.
As an adventurer-explorer, Captain Walsh has worked in the deep oceans, polar regions and space. From 1959 to 1962 he was the first commander of the Navy's Bathyscaph Trieste. In 1960, he and Jacques Piccard dove piloted the submersible to the deepest place in the World Ocean, a depth of seven miles. This was a feat not repeated until 2012 when James Cameron did it.
For the past half century he has also been involved with nearly 50 expeditions to the Arctic and Antarctic, including both Poles. In 1972, the “Walsh Spur” in the Antarctic was named in recognition of his contributions to the U.S. Antarctic Program.
In the mid-1960’s he was one of the first oceanographers to do oceanography from space. His work at NASA Houston was involved with the earliest Apollo missions.
Dr. Walsh was educated at Annapolis (BS), Texas A&M University (MS and PhD in physical oceanography) University and San Diego State University (MA).
Walsh is one of 20 living Honorary Life Members of the Explorers Club and its Honorary President. In 2001, he was elected to the U.S. National Academy of Engineering.