 In addition to 20 years of public service in the National Park Service and the National Oceanic and Atmospheric Administration, Delgado has held a series of appointed civic political positions, and has served as an officer in professional associations, including a term as President of the Council of American Maritime Museums.He is a Registered Professional Archaeologist (RPA), and is an elected Fellow of the Royal Geographical Society, the Royal Canadian Geographical Society, and The Explorers Club.He is a longstanding member of the Society for Historical Archaeology, the Archaeological Institute of America, and the Society for American Archaeology.