The interviews conducted by curator Maurice Tuchman measure 0.4 linear feet and date from 1976. The collection is a series of interviews with thirteen persons associated with the painter Richard Diebenkorn, including Diebenkorn's wife, his friends, as well as collectors, art historians, and others. The interviews were conducted in conjunction with the 1977 exhibition, "Richard Diebenkorn: Paintings and Drawings, 1943-1976" at the Los Angeles County Museum of Art.

The records of the Poindexter Gallery measure 7.1 linear feet and date from 1931-1985 with the bulk of the materials dating from 1955-1978 when the gallery was active. The majority of the collection consists of artists' files documenting the gallery's relationships with its artists, including exhibitions, and containing a wide variety of materials, including photographs. Also found are the "desk files" kept by the gallery's founder, Elinor Poindexter; correspondence; and financial and legal records.

The papers of sculptor and site-specific installation artist Elyn Zimmerman measure 28.5 linear feet and 0.223 gigabytes, and date from 1969-2017. The collection documents the artist's life and work through correspondence, writings, project and commission files, exhibition files, teaching files, and printed material. Project and commission files comprise the majority of the collection at 18.2 linear feet and comprehensively document dozens of Zimmerman's site-specific sculptural projects and proposals for public and private sites across the United States and internationally. Items include correspondence, contracts, photographs, models, blueprints, and original sketches and drawings. The papers include a small number of born digital records, including digital images of projects, construction sites, and floorplans, as well as PowerPoint presentations.

The papers of art critic, writer, and painter Theodore F. Wolff measure 8 linear feet and date from 1920-2013, with the bulk of the material dating from 1977-2013. The collection documents Wolff's career through biographical material, correspondence, interviews, writings, subject files, printed material, a small amount of artwork, and photographs.

The papers of art critic, author, and lecturer Clement Greenberg measure 8.6 linear feet and date from 1937 to 1983. The bulk of the collection consists of letters from art critics, artists, family, friends, galleries, and museums. Notable correspondents include Jack Bush, Anthony Caro, Richard Diebenkorn, Friedel Dzubas, Helen Frankenthaler, Adolph Gottlieb, Hans Hofmann, Morris Louis, Robert Motherwell, Charles Pollock, Jules Olitski, David Smith, and Anne Truitt among others. Also found are biograpical materials, personal business and financial records, an etching by Kurt Wisneski, printed materials, and two reports by Greenberg concerning his travels.

The papers of Los Angeles art historian, art critic, and writer Merle Schipper measure 12.1 linear feet and date from circa 1930s to 1999. The papers include biographical material, correspondence, writing and research project files, printed material, writings by others, photographs, and artwork.

The papers of Dore Ashton measure 35.6 linear feet and date from circa 1928-2014, with one letter in the Joseph Cornell subject file dating from 1849. The records document Dore Ashton's career as an art critic, historian and educator, with particular depth for the period of 1952 through 1990. The collection contains a small amount of biographical material, as well as correspondence, writings, subject files, printed materials, artwork, and reference photographs of artworks. An addition to the Dore Ashton papers includes biographical material, correspondence, writings, writing project and subject files, teaching files, printed material, artwork and sketchbooks, and photographic material.

The papers of southern California Pop artist Billy Al Bengston measure 10.4 linear feet and date from circa 1940s to 1989, with the bulk of the materials dating from 1960 to 1988. The collection documents the life and work of the artist through biographical materials, correspondence, personal business records, gallery and museum files, teaching files, project and commission files, scattered artwork, printed materials, and photographs.

The papers of art critic, curator, and educator April Kingsley and painter, sculptor, writer, and educator Budd Hopkins measure 11 feet and 0.209 Gigabytes, and date from circa 1945-2017. Kingsley's papers are comprised primarily of artist files for figures that April had a significant engagement with, project files, interviews with artists, subject file index cards, biographical materials, and miscellaneous correspondence. Hopkins' papers are comprised of biographical material, as well as correspondence with various prominent art world figures including Richard Diebenkorn, Robert Motherwell, Carl Andre, Howardena Pindell, and Robert Rosenblum. Hopkins' personal business records include correspondence and sale and consignment information. Also found are writings, printed material, including exhibition invitations and catalogs and press clippings, and photographic material depicting Hopkins and his artwork.

The records of the Marilyn Pearl Gallery are dated 1925-2000, with the bulk of the ematerial from the period 1976-1993. The collection measures 7.4 linear feet and consists of artists' files, exhibition files, and business records documenting affiliated artists and gallery activities.