Harold is Director Emeritus of Smithsonian Affiliations. From 2004 to 2017 he led the Affiliations office, overseeing efforts to establish long-term partnerships between the Smithsonian and museums, educational organizations, and cultural institutions across the United States. His long tenure at the Smithsonian included service as the Senior Management Advisor in the Office of National Programs and as Associate Director for Public Service at the National Museum of American History, where he oversaw the museum’s educational and public programs as well as the design and installation of more than 150 exhibitions.