SI 1.1: Smithsonian Institution (1846- )
SI 2.1: Bureau of American Ethnology (1879-?)
SI 3.1: National Museum of American History/National Museum of Natural History (1980- )
SI 4.1: American Historical Association (1889- )
SI 5.1: National Society of the Daughters of the American Revolution (1896-1948)
SI 6.1: Smithsonian American Art Museum (1980- )
SI 7.1: Freer Gallery of Art and Arthur M. Sackler Gallery (1921- )
SI 8.1: National Gallery of Art (1937- )
SI 9.1: National Air and Space Museum (1967- )
SI 10.1: John F. Kennedy Center for the Performing Arts (1963- )
SI 11.1: National Portrait Gallery (1961- )
SI 12.1: Woodrow Wilson International Center for Scholars (1967- )
SI 13.1: Hirshhorn Museum and Sculpture Garden (1974- )
SI 14.2: National Museum of African Art (1979- )
SI 15.2: National Museum of the American Indian
SI 18.1: Smithsonian Institution Press
