The Joseph Konopka Papers measure 1.1 linear feet and date from 1965 to 2003. The papers document Konopka's career as a photo-realist and landscape painter through biographical material, correspondence, and artwork.

The papers of art critic and photographer Max Kozloff measure 1.4 linear feet and date from circa 1950-2015. The collection provides a glimpse into the work life of a prolific twentieth century American art critic through biographical material, correspondence with artists and critics, interviews, many unpublished writings, and printed material.

The records of modernist New York City Kootz Gallery measure 7.1 linear feet and date from 1923-1966. They consist of scattered correspondence and exhibition files; photograph files of artists, including ones for Picasso, William Baziotes, and Hans Hofmann, among many others; 23 scrapbooks; photographs and slides of the gallery and exhibitions; and scattered personal papers of Samuel M. Kootz.

The papers of Belle Krasne Ribicoff measure 1.6 linear feet and date from 1942-circa 2010, with the bulk of the collection dating from 1945-2004. Papers include biographical materials; correspondence with artists, art historians, writers, museum directors, and others; individual files relating to Belle and Irving Ribicoff's art collection and the Friends of Abe Ribicoff's campaign for the United States Senate; artwork; printed material, e.g., clippings, announcements, exhibition catalogues, brochures; and photographs. The collection documents Ribicoff's career as an arts editor, critic, and her involvement in civic and arts organizations for the State of Connecticut.

The papers of Chaim and Dorothy Koppelman measure 4.0 linear feet and date from circa 1930s-2006, bulk 1942-2005. The collection documents the activities of Chaim Koppelman and his wife, Dorothy Koppelman, as artists and educators, and their affiliation with the Terrain Gallery and the Aesthetic Realism Foundation. Materials include biographical material, correspondence, writings and notes, subject files, teaching files, exhibition files, personal business records, scrapbooks, printed material, sketches, sketchbooks, and photographs.

The papers of painter, printmaker, and sculptor Peter Krasnow (1886-1979) and his wife, writer Rose Krasnow (1885-1984), measures 6.9 linear feet and date from 1914 to 1984. Papers include biographical materials, a sound recording, correspondence, essays, poetry, short stories, notes, transcripts of lectures and radio talks, five diaries of Peter Krasnow, personal business records, exhibition catalogs and announcements, clippings, magazines, five sketchbooks, sketches and drawings in multiple media, prints, and photographs.

The records of New York City Kraushaar Galleries measure 91.9 linear feet and 0.181 GB and date from 1877 to 2006. Three-fourths of the collection documents the gallery's handling of contemporary American paintings, drawings, and sculpture through correspondence with artists, private collectors, museums, galleries, and other art institutions, interspersed with scattered exhibition catalogs and other materials. Also included are John F. Kraushaar's estate records; artists' files; financial ledgers documenting sales and gallery transactions; consignment and loan records; photographs of artwork; sketchbooks and drawings by James Penney, Louis Bouché, and others; and two scrapbooks.

Four loose-leaf books documenting Kingman's career containing biographical information, letters, clippings and photographs of Kingman and his paintings and lithographs; newspaper clippings, magazine articles and exhibition catalogs; a transcript of an interview of Kingman by his daughter Elizabeth A. Kingman, 1970, "Art, Environment, and Museums: A...

The papers of landscape painter and art instructor William Kienbusch measure 5.0 linear feet and date from 1915 to 2001, with the bulk of the materials dating from 1936 to 1980. The collection documents Kienbusch's life as an artist in New York City and Cranberry Island, Maine. Files include biographical material; correspondence with family, friends, and colleagues; writings and notes; scattered printed material; photographs; and artwork, including 17 sketchbooks.

The William Kienbusch letters to Francis and Sydney Hamabe measure 0.2 linear feet and date from 1958 to 1977. Found in this collection are 93 letters and postcards in which Kienbusch discusses his work as a landscape painter and art instructor in New York and Maine, family business, activities with the Hamabes, their mutual friends, and other artists. Included as letter attachments are newspaper clippings and three catalogs for Kienbusch exhibitions at Kraushaar Gallery from 1959, 1969, and 1975.