The papers of Matthew Shepard (1976-1998) a gay man who was a victim of a hate crime in Laramie, Wyoming October 1998 resulting in his death. His death gained national and international attention leading to the formation of the Matthew Shepard Foundation and eventual passage of federal hate crime legislation (The Matthew Shepard and James Byrd, Jr. Hate Crimes Prevention Act), signed into law in October 2009.

The papers of artist Ellen Lanyon measure 62.6 linear feet and 84.47 GB and date from circa 1880-2015, bulk 1926-2013. Biographical material; correspondence; interviews; writings; journals; project files; teaching files; exhibition files; personal business records; printed and broadcast material; scrapbooks; photographic material; artwork; sketchbooks; as well as sound and video recordings and digital material, provide a comprehensive view of Lanyon's career and of art circles in Chicago and New York. Correspondence with artists and friends make up a significant portion of the collection. Project and exhibition files reflect her professional and artistic career. Thousands of slides and photographs document her life and artwork over seven decades, and over seventy sketchbooks are filled with student sketches, portraits of friends and family, and preliminary drawings.

This collection consists of over nine cubic feet of material documenting Scott Crossfield's aviation career, with emphasis on his involvement with the North American X-15. The following types of material are included: correspondence; reel to reel tapes; papers, manuscripts; newspaper and magazine clippings; aviation manuals; photographs; film; and Crossfield's notes and reports.

The papers of art collectors, art patrons, and philanthropists Lawrence and Barbara Fleischman measure 4.9 linear feet and date from 1837 to 1984, with the bulk of the materials dating from 1935-1979. The papers are comprised mostly of correspondence with artists, museums, and arts organizations. Also found are scattered biographical materials, artists' autograph letters purchased by the Fleischmans, exhibition files, notes and writings, printed material, and photographs.

The papers of historian Henry P. Whitehead measure 156.91 linear feet and date from 1843 to 2010 (bulk 1945-1986). The collection documents Whitehead's careers, as well as his family and personal life. The collection also includes the personal papers of Tomlinson D. Todd, Elizabeth B. Delaney and the Howard Theatre Foundation. The combined collection is comprised of black theatrical memorabilia; materials relating to civil rights activities in the District of Columbia; and the African American experience in general. Included are playbills, sheet music, admission tickets, newspapers, magazines, books, photographs, clippings, flyers, brochures, pamphlets, sound recordings, research files, and other material.

The papers of sculptor, painter, and publishing executive Alexander Semeonovitch Liberman date from circa 1913-2003 and measure 59 linear feet. Found within the papers are biographical materials; correspondence with family, galleries, museums, and many artists; numerous recorded interviews and transcripts with and by Liberman, including one of Walter Hopps; writings and writing project files; extensive subject files maintained by Liberman; exhibition files; printed materials; scattered drawings; and extensive photographs of Liberman's artwork, exhibitions, Liberman, and of Liberman with notable artists, dealers, collectors, and critics. Many of the photographs were taken by noted photograhers. Also found within the papers are unidentified sound and video recordings. Additional sound and video recordings have been integrated into other series.

The papers of Henry Varnum Poor measure 12.9 linear feet and date from 1873-2001, with the bulk from the period 1904-1970. Correspondence, writings, artwork, printed material and photographs document Poor's work as a painter, muralist, ceramic artist and potter, architect, designer, writer, war artist, educator and a co-founder of the Skowhegan School of Painting and Sculpture. Also found is extensive information about the design and construction of Crow House, his home in New City, New York, commissions for other architectural projects, and his personal life.

The Jacques Lipchitz papers and Bruce Bassett papers concerning Jacques Lipchitz measure 52.8 linear feet and are dated circa 1910-2001, with the bulk of the material from the period 1941-2001. Papers are comprised of sculptor Jacques Lipchitz's personal papers and filmmaker Bruce Bassett's papers relating to Jacques Lipchitz. Lipchitz's personal papers contain personal and professional correspondence, comprising nearly half of the series, and biographical material, writings by and about Lipchitz, printed material, and photographs documenting Lipchitz's commissions, exhibitions, friendships, and interests. Also found are records relating to the compilation and production of The Sculpture of Jacques Lipchitz: A Catalogue Raisonné by Alan G. Wilkinson. The Bruce Bassett papers relating to Jacques Lipchitz consist mainly of Bassett's extensive audiovisual documentation of Lipchitz's life and art. Also found are paper records related to the audiovisual projects, including letters, business records, printed materials, and production records. A small quantity of material unrelated to Lipchitz is also found among the Bassett material, including video and sound recordings related to Sidney Lifchez, IBM, Isamu Noguchi, the Storm King Sculpture Center, and Auguste Rodin.

This collection is composed of Krafft Ehricke's files including Ehricke's published and unpublished papers as well as papers and works by others that Ehricke gathered, presumably as reference material.

The Leo Castelli Gallery records measure 215.9 linear feet and 0.001 GB and date from circa 1880-2000, with the bulk of the materials dating from the gallery's founding in 1957 through Leo Castelli's death in 1999. The major influence of dealer Leo Castelli and his gallery on the development of mid-to-late twentieth century modern art in America is well-documented through business and scattered personal correspondence, administrative files, exhibition files, extensive artists' files and printed materials, posters, awards and recognitions, photographs, and sound and video recordings. Also included are records for the subsidiary firms of Castelli Graphics and Castelli/Sonnabend Tapes and Films.