The papers of Washington, D.C. art historian, librarian, author, educator, and art consultant Marchal Landgren measure 15.3 linear feet and date from 1881 to circa 1982, with the bulk of the material dating from 1930 to 1975. Included are biographical materials, correspondence, writings and notes, professional and organization files, research projects' files, scattered personal business records, printed materials, two clippings scrapbooks, photographical materials, and scattered artwork.

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.

F.C. Brown was a physicist and inventor who created and supervised the development of education exhibits, most notably as organizing director of the New York Museum of Science and Industry (part of the Museums of the Peaceful Arts), 1926-1931. He was also curator of physics exhibits at Chicago's Museum of Science and Industry, 1932-1937. Much of Brown's scientific research focused on the element selenium. He invented the phonopticon, an improvement on the optophone (invented by Fournier d'Albe, 1912). Material focuses on Dr. Brown's professional life: correspondence, photographs, photo albums, scrapbooks, and ephemera from the positions he held and research he conducted. Very little personal information is included.

The papers of New York, N.Y., and Washington, D.C. painter and muralist Allyn Cox measure 11 linear feet and date from 1856-1982. The collection documents Cox's personal and professional life through biographical material, family and general correspondence, writings and notes, research material, printed material, sketchbooks and loose sketches, and photographs. Photographs are of Cox at work, the Cox family, including Kenyon and Louise Cox, Cox's friends and colleagues, events, and Cox's artwork.

The papers of graphic artist, muralist, and activist Hugo Gellert measure 6.9 linear feet and date from 1916 to 1986. They document his career as an artist and organizer for the radical political left through an interview, legal papers, financial records, family papers, artifacts, correspondence, writings, organizational records, extensive printed materials (many of them illustrated by Gellert), photographs, and artwork.

The records of the National Arts Club measure 32.1 linear feet and date from 1898 to 1960. The collection documents the founding of the club, and it's governance, administration, exhibitions, and social activities

The Grace F. Thorpe Collection (1900-2008) includes documents, photographic prints, slides, negatives and other materials that encapsulate the breadth of Grace Thorpe's life and work as a WWII veteran, Native rights activist, and dedicated daughter, mother and family member. This includes material from her personal, military and professional life. ...

The Gertrude Vanderbilt Whitney papers measure approximately 36.1 linear feet and date from 1851 to 1975, with the bulk of the material dating from 1888 to 1942. The collection documents the life and work of the art patron and sculptor, especially her promotion of American art and artists, her philanthropy and war relief work, her commissions for memorial sculpture, and her creative writing. Papers include correspondence, journals, writings, project files, scrapbooks, photographs, artwork, printed material, two sound recordings, and miscellaneous personal papers.

The papers of designer, silversmith, and educator Hans Christensen measure 12.3 linear feet and date from 1924 to 1989 with the bulk of the collection dating from 1955 to 1983. The collection includes biographical materials, correspondence, writings and notes, personal business records, teaching files for the Rochester Institute of Technology, printed and broadcast materials, artwork, photographic materials, and sound and video recordings.

The records of the National Society of Mural Painters measure 13.1 linear feet and date from 1895 to circa 2007. The activities of the society are documented through administrative files, membership files, correspondence, committee files, exhibition and competition files, artist files, financial and legal records, printed material, a scrapbook, and photographic materials.