Marie entered the Navy in 1980. Since then she has been responsible for the diagnosis & treatment of diving related illnesses, evaluating diving and life support systems, planning compression and decompression schedules for saturation divers, and demonstrating a working knowledge of submarines and their related medical and psychological aspects. Marie was an Undersea Medical Officer with the Navy Experimental Diving Unit and qualified in scuba, mixed gas and saturation diving. Marie retired from the Navy in 2004 and spends her time volunteering at ZooWorld in Panama City Beach, FL.