The papers of painter, political activist, and educator Leon Golub are dated 1930s-2009 and measure 16.5 linear feet. His career as a painter and educator – and, to a far lesser extent, his personal interests and activities – are documented by correspondence, interviews, writings by Golub and other authors, subject files, printed material, and audiovisual recordings. Also included are biographical materials, personal business records, and photographs of Leon Golub and wife Nancy Spero. Posthumously dated items are mostly condolence letters, obituaries, printed material, and inventories of his work.

The papers of painter, collage artist, and printmaker Nancy Spero measure 27.5 linear feet and are dated 1940s-2009. Biographical materials, correspondence, interviews, writings, subject files, personal business records, printed 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 records of Galerie Darthea Speyer measure 17.2 linear feet and 1.58 GB and date from 1953 to 2010. The majority of the collection consists of artists' files containing a wide variety of materials documenting the Paris gallery's relationship with American and European artists, as well as gallery exhibitions. Also found are scattered financial records, guestbooks, documentation on the Park Hyatt Paris-Vendome art collection, exhibition announcements, posters, and additional photographs.

The records of the New York Artists Equity Association (NYAEA) measure 26.8 linear feet and date from 1920-2012. The records include history and founding documents, presidents' files, board of directors' files that include monthly board meeting minutes, committee files and annual membership meeting minutes, general administrative and correspondence files, financial and legal files, event and program files, artists and subject files, extensive individual membership files, art project and exhibition files, Broome Street Gallery files, NYAEA publications that include issues of The Artists Proof, printed materials, four scrapbooks, sketches created by artists attending a party in honor of Yasuo Kuniyoshi, and photographs of member artists and events.

The papers of artist Ellen Lanyon measure 62.6 linear feet and date from circa 1880-2014, 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 electronic records, 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.

The papers of art historian and writer Peter Howard Selz measure 31.5 linear feet and date from 1929 to 2018, with the bulk of the materials from 1950 to 2005. The papers document Selz's long career via correspondence, writings, professional files, project files, membership and association records, artists' research files, exhibition files, personal business records, printed materials, and nine scrapbooks.

The papers of art historian, dealer, critic, and curator Katharine Kuh measure 12 linear feet and date from 1875-1994, with the bulk of the material dating from 1930-1994. The collection documents Kuh's career as a pioneer modernist art historian and as the first woman curator of European Art and Sculpture at the Art Institute of Chicago. Found within the papers are biographical material; correspondence with family, friends and colleagues; personal business records; artwork by various artists; a travel journal; writings by Kuh and others; scrapbooks; printed material; photographs of Kuh and others; and audio recordings of Kuh's lectures and of Daniel Catton Rich reading poetry.

The papers of New York City and Gainesville, Florida based painter Arnold Mesches (1923-2016) measure 13.6 linear feet and date from 1939-2015. The collection documents Mesches' politically-engaged career and work process through biographical material, correspondence, writings, gallery and exhibition files, project files, subject files, teaching files, personal business records, printed material, and photographic material. Project files comprise a bulk of the collection and include grant files, activism files, project notebooks, and over 100 art project files containing drawings, source material, and photographic material for individual artworks.