The papers of art historian and World War II Monuments Man Walter W. Horn measure 2.7 linear feet and date from 1908 to 1992, with the bulk of material dating from 1943 to 1950. Walter Horn taught art history at the University of California, Berkeley from 1938 to his retirement in 1974. During World War II, Horn served as Head of the U. S. Army Intelligence Unit of the Monuments, Fine Arts, and Archives Section (MFAA.) The papers contain biographical materials; professional correspondence; records documenting his service in the MFAA; administrative files relating to his work at the University of California, Berkeley; and scattered photographs.

The records of the Catherine Viviano Gallery measure 11.6 linear feet and date from 1930-1990, with the bulk of the materials dating from 1949-1978. Established in New York City in 1949, the gallery specialized in contemporary painting and sculpture primarily by American and European artists. The collection consists of artists' files; correspondence with artists, collectors, dealers, museum directors, curators, and publishers; business records; printed material; and photographs of artwork and artists. Also included are records relating to Catherine Viviano's activities as a private dealer and consultant after she closed the gallery in 1970.

This accession consists of concert notes and other programs for the Bill and Mary Meyer Concert Series and Asian performances presented by the Freer Gallery of Art and Arthur M. Sackler Gallery.

The papers of artist and arts administrator Roy Moyer measure 2.8 linear feet and date from 1923 to 2013, with the bulk of the materials dating from 1950 to 2000. The materials also concern to a limited degree Moyer's life partner, artist and art historian, Karl Lunde. Moyer's career is documented by writings, photographs of his artwork and exhibiton installations, as well as printed materials concerning exhibitions and his participation in cutural and community activities. There is limited correspondence or material of a personal nature.

The Barbara Rose papers date from 1962 to circa 1969 and measure 1.4 linear feet. Papers include letters, writings, printed material, interviews with artists, panel discussions, and lectures relating to Barbara Rose's research as an art historian.

The Frank K. M. Rehn Galleries records measure 21.8 linear feet and are dated 1858-1969 (bulk 1919-1968). The records consist mainly of business correspondence with collectors, artists, museums and arts organizations, colleagues, and others. A small amount of Frank K. M. Rehns personal correspondence and a few stray personal papers of individual artists are interfiled. Also included are financial records, scrapbooks, printed matter, miscellaneous records, and photographs documenting most of the history of a highly regarded New York City art gallery devoted to American painting.

The Gustave Harrow legal records relating to the Estate of Mark Rothko measure 34.6 linear feet and date from 1957-1986. The records document the case brought by the New York State Attorney General's Office as cross-petitioner to the case brought by Rothko's daughter Kate, against the executors of Rothko's estate, Frank Lloyd and the Marlborough Gallery, for mismanagement and self-dealing. There are also records related to Harrow's writings about the case. Lastly, included in the collection are materials relating to art law issues in connection with the Metropolitan Museum of Art.

The papers of educator, painter, and art historian William Chapin Seitz measure 32.5 linear feet and date from circa 1930-1995. The collection includes biographical information, correspondence, notebooks, subject and people files, thesis research files, interviews and lecture recordings, teaching files, personal business records, scattered printed materials, photographs, and artwork. The bulk of the papers focus on Seitz's research and teaching career.

The Ivan C. Karp papers and OK Harris Works of Art gallery records measure 80.3 linear feet and are dated 1960-2014. The collection documents the operation and activities of the contemporary art gallery founded by Ivan C. Karp in the SoHo area of Manhattan. Exhibition files, artist files, printed material and photographic materials reveal the wide range of artists represented by OK Harris and the gallery's role in introducing Photo-realism to the public. Aso included are administrative files, prints by OK Harris artists, business and personal correspondence, 39 journals by Karp spanning a period of 62 years, and other personal papers. Material pre-dating the 1969 establishment of OK Harris Works of Art consists of printed items and a few letters.

The papers of filmmaker, photographer, painter, printmaker, teacher, and arts advocate Maryette Charlton measure 81 linear feet and date from circa 1890 to 2013. This particularly rich collection includes biographical materials, correspondence, writings, 30 diaries, teaching files, professional and project files, major film project files, artist research files, exhibition files, printed material, scrapbooks, artwork, 22 sketchbooks, extensive photographic materials, numerous sound and film recordings, a digitized sound recording, and an unintegrated later addition to the papers containing additional biographical materials, journals, correspondence, subject files, printed materials, and scattered photographs.