Over 300 pencil and pencil and ink drawings, circa 1950s-1960s, mostly contained in sketchbooks and tablets, as well as numerous loose sketches and several mixed-media works on board. Also found are Altoon's letters and a ship's log dating from his years of WWII Navy service in the Pacific.

An interview of Norton Wisdom conducted 2000 April 27, by Paul Karlstrom, for the Archives of American Art, in a restaurant in Beverly Hills, California.

An interview of Ed Moses conducted 1980 July 10-12, by Sheldon Figoten, for the Archives of American Art.

The Irving Blum Gallery and Ferus Gallery announcements consist of 32 announcements for exhibitions at the Los Angeles Ferus Gallery (1957-1966) and its successor the Irving Blum Gallery (1966-circa 1972). Exhibition announcements are for many exhibitions of southern California contemporary and pop artists, as well as New York artists. Artists represented by announcements include John Altoon, Don Bachardy, Larry Bell, Billy Al Bengston, Robert Irwin, Jasper Johns, Donald Judd, Craig Kauffman, Roy Lichtenstein, Edward Moses, Kenneth Noland, Ad Reinhardt, Ed Ruscha, Frank Stella, and Andy Warhol, among others.

An interview of Clinton Adams conducted 1995 August 2-3, by Paul Karlstrom, for the Archives of American Art, at his home, in Albuquerque, New Mexico.

The records of the Nicholas Wilder Gallery of Los Angeles measure 2.4 linear feet and date from 1944 through 1984, with the bulk of materials dating from 1968-1979. Scattered documentation of the contemporary art gallery's fourteen years of operation include artists' inventory cards, photographic transparencies, letters and correspondence, invitations, notes, business and financial documents, and printed materials.

An interview with Allan Sekula conducted 2011 August 20-2012 February 14, by Mary Panzer, for the Archives of American Art at Sekula's studio and home in Los Angeles, California and at the Museum of Modern Art in New York, New York.

The records of Dorothy Goldeen Gallery, based in Southern California, measure 18.5 linear feet and 2.52 GB and date from 1960 to circa 2014, with the bulk of the items dating from 1987 to 1996. The Dorothy Goldeen Gallery, operated from 1986-1996 and featured the work of prominent contemporary artists, such as Magdalena Abakanowicz, John Altoon, Fletcher Benton, Howard Ben Tre, Ciel Bergman, Squeak Carnwatch, Dale Chihuly, Duck-Hyun Cho, Roy De Forest, Heidi Fasnacht, Robert Hudson, Terence La Noue, Donald Lipski, Nam June Paik, Ed Paschke, Alan Rath, Zizi Raymond, Pablo Reinoso, among many others. The collection includes correspondence, scattered administration records, exhibition files, extensive artists' files that also include many video recordings, financial and legal records, printed and digital materials, and photographic materials. There is a 2.3 linear foot unprocessed addition to this collection donated in 2021 that includes a business plan, 1987; exhibition announcements; website project files; travel files and notebooks; a rolodex; files on works of art, artists, exhibitions and the Dorothy Goldeen gallery and art advisory/ consulting; lecture notes; personal and professional business records; and a scrapbook containing printed material about the gallery, 1987-1989. Materials date from circa 1987-2013.

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 records of New York City Fischbach Gallery measure 39.5 linear feet and date from 1937 to 2015, with the bulk of materials dating from 1963 to 1977. The majority of the collection consists of artists files containing a wide variety of materials documenting the gallery's relationship with its stable of modern and avant garde artists, as well as gallery exhibitions. Files include biographical materials, correspondence, printed materials, and photographs. Gallery records also include general business correspondence, access-restricted financial records; and additional printed materials. The 2015 addition of 14 linear feet consists of inventory and client sales records in the form of card indexes. The 2019 addition consists of material related to Marilyn Fischbach's art collection.