The papers of painter, collage artist, and printmaker Nancy Spero measure 27.5 linear feet and 19.12 GB and are dated 1940s-2009. Biographical materials, correspondence, interviews, writings, subject files, personal business records, printed and digital material, and photographic materials provide an overview of her exhibitions, major projects, and personal life. Also documented is her interest and participation in political movements and social issues including anti-war, women's rights, animal rights, repressive regimes, and the treatment of political prisoners.

The Smithsonian Institution Festival of American Folklife, held annually since 1967 on the National Mall in Washington, D.C., was renamed the Smithsonian Folklife Festival in 1998. The materials collected here document the planning, production, and execution of the annual Festival, produced by the Smithsonian Center for Folklife and Cultural Heritage (1999-present) and its predecessor offices (1967-1999). An overview of the entire Festival records group is available here: Smithsonian Folklife Festival records.

The collection consists of correspondence, appointment books, business records, music manuscripts, sound recordings, photographs, and ephemera documenting the activities of Duke Ellington and the management of Tempo Music, Incorporated. There is a small amount of material relating to the Ellingotn family.

The Smithsonian Institution Festival of American Folklife, held annually since 1967 on the National Mall in Washington, D.C., was renamed the Smithsonian Folklife Festival in 1998. The materials collected here document the planning, production, and execution of the annual Festival, produced by the Smithsonian Center for Folklife and Cultural Heritage (1999-present) and its predecessor offices (1967-1999). An overview of the entire Festival records group is available here: Smithsonian Folklife Festival records.

The Smithsonian Institution Festival of American Folklife, held annually since 1967 on the National Mall in Washington, D.C., was renamed the Smithsonian Folklife Festival in 1998. The materials collected here document the planning, production, and execution of the annual Festival, produced by the Smithsonian Center for Folklife and Cultural Heritage (1999-present) and its predecessor offices (1967-1999). An overview of the entire Festival records group is available here: Smithsonian Folklife Festival records.

The George Henry Mills Collection was donated to the National Air and Space Museum in 1994 by Mills' daughter, Mrs. Georgia Mills Head.

The Smithsonian Institution Festival of American Folklife, held annually since 1967 on the National Mall in Washington, D.C., was renamed the Smithsonian Folklife Festival in 1998. The materials collected here document the planning, production, and execution of the annual Festival, produced by the Smithsonian Center for Folklife and Cultural Heritage (1999-present) and its predecessor offices (1967-1999). An overview of the entire Festival records group is available here: Smithsonian Folklife Festival records.

The Smithsonian Institution Festival of American Folklife, held annually since 1967 on the National Mall in Washington, D.C., was renamed the Smithsonian Folklife Festival in 1998. The materials collected here document the planning, production, and execution of the annual Festival, produced by the Smithsonian Center for Folklife and Cultural Heritage (1999-present) and its predecessor offices (1967-1999). An overview of the entire Festival records group is available here: Smithsonian Folklife Festival records.

The papers of New York art collector and philanthropist, Joseph F. McCrindle, measure 5.3 linear feet and date from 1877-2013. The collection documents McCrindle's art collecting, art donations, philanthropy, family affairs, and personal estate. Found are extensive art inventories, sales receipts, gift and loan documentation, and photographs of artwork. The papers also include Joseph McCrindle's estate records and wills, family papers, records from the Joseph F. McCrindle Foundation, correspondence with museums and galleries, and photographs of McCrindle and family members.

The Rockwell Kent papers measure 88.0 linear feet and date from circa 1840 to 1993 with the bulk of the collection dating from 1935 to 1961. The collection provides comprehensive coverage of Kent's career as a painter, illustrator, designer, writer, lecturer, traveler, political activist, and dairy farmer.