A visionary marine scientist and dedicated conservationist, John Mark Dean ’58, died at the age of 88 on March 27, 2025, in West Columbia, South Carolina.
Dean was a passionate advocate for Cornell’s environmental studies programs. He established the Rogers Fellowship in Environmental Studies, named for his mentor, biology professor T. Edwin “Ed” Rogers ’39. Dozens of Cornell students have received this fellowship, offered at the Baruch Marine Field Laboratory in South Carolina. An annual award in his name honors the top environmental justice and sustainability major.
In recognition of his dedication to applying a liberal arts perspective to the study and teaching of aquatic ecology, Dean was awarded an honorary doctor of science degree by Cornell in 2003. As a student, he was involved in Biology Club, Chemistry Club, and Alpha Chi Epsilon.
Dean earned his Ph.D. from Purdue University in 1962. He held research positions at Duke University Marine Laboratory and the Hanford Atomic Energy Research Station before joining the University of South Carolina in 1970. He remained there until retiring in 2002. As professor emeritus, he inspired generations of students, published more than 83 papers, advanced marine science, and helped shape policies that protect ecosystems worldwide.
Dean brought energy and joy to the Cornell alumni community through annual giving, alumni events, and mentoring. He is survived by his wife, Robin Dean, and his son Philip Scott Dean.