• American Institute of History Education
• Ashland University
• Brown v. Board of Education National Historic Site
• Center for Civic Education
• Eisenhower Presidential Library and Museum
• Franklin Delano Roosevelt Presidential Library and Museum
• George Washington’s Mount Vernon Estate and Gardens
• George Washington Institute for Religious Freedom
• Grand Lodge Free And Accepted Masons of the District of Columbia in Washington, D.C.
• Gunston Hall Plantation
• The Hermitage – Home of President Andrew Jackson
• James Madison’s Montpelier
• James Monroe’s Ash Lawn-Highland
• Liberty Central
• Liberty Fund, Inc.
• Library of Congress
• Lincoln Home National Historic Site
• Lyndon Baines Johnson Presidential Library and Museum
• McCormick Freedom Museum
• National Archives
• National Constitution Center
• National Endowment for the Humanities
• National History Club
• National History Day
• Newseum
• Nutter, McClennen & Fish, LLC
• Oklahoma Bar Association
• PennCORD
• President Lincoln’s Cottage
• Thomas Jefferson’s Monticello
• State Bar of Texas
• We the People – a Giant Screen Film
• U.S. Department of State
• York County Heritage Trust