Mary Beth Betts is the Tour Manager at the Public Design Commission. She plans tours of New York City Hall, manages a team of four docents, and researches the diverse history of City Hall and its collections. She is an architectural historian and has worked at the New York City Landmarks Preservation Commission, The New-York Historical Society and taught architectural history at The Irwin S. Chanin School of Architecture, The Cooper Union. She organized exhibitions on McKim, Mead & White, and New York City Hall and has published essays on Cass Gilbert, New York City Hall and the New York City waterfront. Mary Beth holds a Ph.D. in Art History from the Graduate Center, CUNY and a B.A. in Art History from the University of Virginia and is active in the Society of Architectural Historians and the Vernacular Architecture Forum.