United States Holocaust Memorial Museum
Photo Researcher
Smithsonian Institution
Associate Curator of Photography, National Museum of American History
University of Glasgow
Honorary Professorship
Smithsonian Institution
Curator, Photographic History Collection, National Museum of American History
Smithsonian Institution
Consortia Director for the Humanities, Office of the Under Secretary for History, Art, and Culture
Smithsonian Institution
Assistant Director for History and Culture, National Museum of the American Indian
Smithsonian Institution
Senior Program Officer for History and Culture, Smithsonian Office of the Provost
Smithsonian Institution
Consortia Director, American Experience, Office of the Under Secretary for History, Art, and Culture
Harvard Extension School
Professor
The George Washington University
University of Strathclyde
Manhattanville College
