Dennis Jones worked for the Texas Parks & Wildlife Department for over 30 years. During that time, he served as Park Naturalist, Resource Manager, Park Superintendent, Park Historian, and Regional Interpretive Specialist. Prior to his service with TPWD, he worked at the Chemical Transportation Center, for chemical spills, leaks, and fires in Washington D.C. At that same time, he worked part time in the Division of Birds at the National Museum of Natural History, the Smithsonian, under the supervision of Roxie Laybourne, bird expert extraordinaire. After retirement from government service he became a Coastal Warden for Audubon Texas and continues in that position today.