The papers of contemporary art collectors Dorothy and Herbert Vogel measure 47.5 linear feet and date from the 1960s to 2009. Found is scattered general correspondence, artists' files, subject files, business records, and printed material relating to the Vogel Collection. Artists' and subject files create the bulk of the collection, the majority of which is printed material but includes some correspondence from artists.

The Art Foundry and Art Foundry Editions records measure 25.7 linear feet and 0.891 GB and date from circa 1975 to circa 2007. Records include administrative files; correspondence with artists, collectors, dealers, galleries, and others; eight gallery appointment books and fourteen notebooks; exhibition files; extensive artists' files; financial and legal materials; sculpture production and inventory files; and photographic and digital materials.

The Samuel J. Wagstaff papers, circa 1932-1985 comprise 6.4 linear feet of correspondence, writings, miscellaneous records, printed material, and photographs documenting Wagstaff's professional and personal relationships with artists and photographers, his career as an art curator, and his position as an important collector of paintings and photographs. Correspondence with artists and others such as curators, arts organizations, galleries, and museums, reflects the diversity of contemporary American art and includes individuals associated with the abstract expressionist, Fluxus, pop, earth, conceptual, and minimalist art movements.

Papers document Katherine Joseph's career as staff photographer for the International Ladies' Garment Workers' Union. The papers contain negatives and prints taken in Mexico, and some photographs of a White House event in 1938, featuring Franklin and Eleanor Roosevelt; and images of American workers on the home front during World War II.

John-Manuel Andriote interviewed numerous individuals involved in the AIDS crisis for his book, Victory Deferred: how AIDS changed gay life in America, this collection contains his interview tapes, transcripts, and materials related to the research and writing of his book.

The papers of Jan Butterfield measure 15 linear feet and date from circa 1950 to 1997. Papers contain hundreds of recorded interviews with and lectures by artists, panel discussions of artists and art historians, as well as extensive writings by Butterfield. Also found are project files, personal business records, printed materials, photographs, and additional sound and video recordings related to art subjects.

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.

The Betty Parsons Gallery records and personal papers measure 57.2 linear feet and date from 1920 to 1991, with the bulk of the material dating from 1946-1983. Records provide extensive documentation of the gallery's operations from its inception in 1946 to its closing in 1983 and of the activities of Betty Parsons as one the leading art dealers of contemporary American Art in the latter half of the twentieth century, particularly the work of the Abstract Expressionists. Over one third of the of the collection is comprised of artists files containing correspondence, price lists, and printed materials. Additional correspondence is with galleries, dealers, art institutions, private collectors, and the media. Also found are exhibition files, exhibition catalogs and announcements, sales records, stock inventories, personal financial records, and photographs. Betty Parsons' personal papers consist of early curatorial files, pocket diaries, personal correspondence, and evidence of her own artwork, including sketchbooks, and files documenting her personal art collection.

This finding aid was digitized with funds generously provided by the Smithsonian Institution Women's Committee.

The Leo Castelli Gallery records measure 215.9 linear feet and date from circa 1880-2000, with the bulk of the materials dating from the gallery's founding in 1957 through Leo Castelli's death in 1999. The major influence of dealer Leo Castelli and his gallery on the development of mid-to-late twentieth century modern art in America is well-documented through business and scattered personal correspondence, administrative files, exhibition files, extensive artists' files and printed materials, posters, awards and recognitions, photographs, and sound and video recordings. Also included are records for the subsidiary firms of Castelli Graphics and Castelli/Sonnabend Tapes and Films.