Stewart B. Nelson, Ph.D. - B. June 9, 1937 D. Dr. Stewart B. Nelson URI -MMA 1974, oceanographer, explorer, author, lecturer and marine historian passed away of complications related to cancer on September 12, 2016 in Tampa, Fla. He is mourned by family, friends and classmates of the Marine Affairs Program at the University of Rhode Island. Dr. Nelson's multifaceted career was principally spent in service to his country in his position as aide to the Office of the Oceanographer of the Navy and in this capacity he was the Senior Advisor to the to the Oceanographer, a Rear Admiral Flag position. Dr. Nelson who later earned a Ph.D, from the University of Southern California, was a pivotal figure in the modern era of the Naval Oceanographic Office.