The papers of art historian, writer, and museum administrator Lloyd Goodrich measure 35.7 linear feet and date from 1884 to 1987 with the bulk of the material dating from 1927 to 1987. Materials include biographical material, extensive correspondence, writings and research files, organization and committee files, exhibition files, printed material, a scrapbook, and photographic material. The collection is particularly rich in research files on Winslow Homer, Thomas Eakins, Albert Pinkham Ryder, and Reginald Marsh, as well as correspondence with additional notable artists and art figures.

Personal papers, mainly correspondence, as well as files on Texas art and artists compiled by Bywaters.

The Robert M. Doty papers measure 4 linear feet and date from circa 1935-2000, with the bulk of the collection dating from 1960-1992. The collection documents Doty's career as a museum curator and director, particularly his involvement with American folk art and photography, through biographical materials, correspondence, writings, artist files, and exhibition and gallery files detailing several exhibitions that Doty curated during his career. Also found are consulting and professional files, subject and research files reflecting a wide variety of research interests, professional projects, and activities, collecting records documenting Doty's personal art collecting, and printed materials related to Doty's career and interests.

The papers of Austrian born curator, lecturer, and museum director, René d'Harnoncourt (1901-1968), document d'Harnoncourt's activities, primarily in the 1930s and 1940s, particularly as they relate to Mexican and Native American art. D'Harnoncourt's career, including his arrival in Mexico in 1925, his curation of the exhibitions, Mexican Art (1930-1932), and Indian Art of the United States (1941), and his work for the Department of the Interior's Indian Arts and Crafts Board from 1937-1944, are documented in small amounts of biographical material and correspondence, published writings, printed material, scrapbooks, photographs of d'Harnoncourt and colleagues, and photographs of works of art. The collection also contains a drawing of d'Harnoncourt, and photocopies of caricatures of d'Harnoncourt and others.

The papers of art historian and museum director Wilhelm Reinhold Valentiner measure 6.9 linear feet and date from 1853 to 1977. Found within the collection are biographical materials, including information on the Lepsius and Valentiner families; correspondence with family, friends, art collectors, and art historians; seven diaries; additional writings and notes; printed materials; three clippings scrapbooks; artwork in the form of prints and woodcuts; and photographs of Valentiner and his family and friends, including two photograph albums.

The papers of conservator and museum director George Leslie Stout measure 6.4 linear feet and date from 1855, 1897-1978. Stout was head of the conservation department at Harvard University's Fogg Art Museum, director of the Worcester Art Museum and Isabella Stewart Gardner Museum in Massachusetts, and a member of the Monuments, Fine Art and Archives (MFAA) Section of the U.S. Army during World War II. The bulk of the collection consists of correspondence with family, friends, colleagues and professional associations. There are letters from fellow Monuments Men who served in the MFAA section such as Thomas Carr Howe, Ardelia Hall, Lamont Moore, Theodore Sizer, Langdon Warner and several other prominent arts administrators. The papers also contain biographical materials, writings, sketches and one sketchbook, military records, printed materials, and photographs. There is a 0.2 linear foot addition to this collection acquired in 2020 that includes four diaries, 1944-1946, kept by George Stout as a member of the Monuments, Fine Arts & Archives Section (MFAA) of the U.S. Army (known as the Monuments Men). The diaries describe Stout's experiences surveying war-caused damages in France, Germany, and Japan, and the recovery of Nazi impounded art works. Also included is a hand-made booklet that includes a "Glossary of Cha-no-yu Terms," which consists of quotes about Japanese art and tea drinking.

The papers of painter, printmaker, and curator Jacob Kainen measure 33.3 linear feet and date from 1905 to 2009, with the bulk of the material from 1940-2001. The bulk of the collection consists of correspondence/subject files including personal correspondence to and from friends and family members and professional correspondence and records concerning Kainen's activities as an artist, curator, teacher, and art collector. The collection also contains biographical material, writings, diaries, calendars, inventories, interview transcripts, printed material, photographs, works of art by other artists, and nine scrapbooks.

The records of the Downtown Gallery date from 1824 to 1974 (bulk 1926-1969) and measure 109.56 linear feet. The records present a comprehensive portrait of a significant commercial gallery that operated as a successful business for more than forty years, representing major contemporary American artists and engendering appreciation for early American folk art. There is an unprocessed addition to this collection dating circa 1970 of a single financial/legal document.

The Los Angeles Art Association records measure 12.6 linear feet and date from 1922-1990. Almost a third of the collection consists of artists' files containing a wide variety of materials documenting the association's relationship with numerous California and international artists. Also found are ten scrapbooks documenting exhibitions and events over the course of 50 years, administrative files, correspondence, subject files, exhibition files, financial and legal records, printed material, and photographic material depicting artists, events, and artwork. Scattered files of Executive Director Helen Wurdemann's are also found throughout the collection.

The papers of painter, sculptor, author, and illustrator Esphyr Slobodkina measure 1.9 linear feet and date from circa 1925 to 1995. Found within the papers are personal and professional correspondence, including letters from Ilya Bolotowsky, George L.K. Morris, and Paul Kelpe; writings, including a copy of the autobiography Notes for a Biographer (vol. 1); printed materials; photographs; and material on the American Abstract Artists, including administrative records, business correspondence, and publications.