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 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 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.