Peter R. Penczer is an author and a leading expert on the history of the National Mall in Washington, D.C. He has spoken publicly many times since 1998 at venues including:
Corcoran School of Art and Design, Washington, D.C.
Department of the Interior, Washington, D.C.
Washingtoniana Division, D.C. Public Library
Guild of Professional Tour Guides of Washington, D.C.
Historical Society of Washington, D.C.
Inter-American Development Bank, Washington, D.C.
National Archives and Records Administration, Washington, D.C.
National Park Service, National Capital Region
Trust for the National Mall