A New York bookseller, Warshaw assembled this collection over nearly fifty years. The Warshaw Collection of Business Americana: Real Estate forms part of the Warshaw Collection of Business Americana, Subseries 1.1: Subject Categories. The Subject Categories subseries is divided into 470 subject categories based on those created by Mr. Warshaw. These subject categories include topical subjects, types or forms of material, people, organizations, historical events, and other categories. An overview to the entire Warshaw collection is available here: Warshaw Collection of Business Americana

This collection documents Gordon's paleontological research; his service with the USGS, including field work; and his professional activities. Included is correspondence and memoranda arranged chronologically, alphabetically, and by subject; reports on fossils sent to Gordon for identification; subject/project files concerning field work, ...

Records documenting Pratt, Read and Company; its early competitor and later partner, Comstock, Cheney and Company; and a number of predecessor, subsidiary and related companies. Other topics include the late 19th century African ivory trade and Pratt, Read's production of troop-carrying gliders during World War II.

The Joan Ludman papers relating to Fairfield Porter measure 4.2 linear feet and are dated circa 1910-2003, bulk 1976-2001. The papers primarily document her research for Fairfield Porter: A Catalogue Raisonné of his Prints (1981) and Fairfield Porter: A Catalogue Raisonné of the Paintings, Watercolors, and Pastels (2001). There are records concerning "Prints by Fairfield Porter from the Lauris and Daniel J. Mason Collection," a traveling exhibition organized by Ludman. Also found are Ludman's records concerning her authentications of Porter's artwork, and general printed material about Porter. Photographs are of Porter and his work. A 2015 addition includes provenance forms sent to Ludman from artwork owners.

These records document the planning, development, and installation of exhibitions by the Department of Painting and Sculpture, Hirshhorn Museum and Sculpture Garden (HMSG). Included are biographical and bibliographical research files on artists; correspondence with museums, galleries, and artists concerning loan of artwork; loan reports; ...

The records of New York City World House Galleries measure 9.8 linear feet and date from 1927 to 1991, with the bulk of them dating from 1953 to 1980. The collection documents the gallery's general business affairs, sales, and relationships with artists from 1953-1968, and later gifts and sales by founder entrepreneur and art collector Herbert Mayer. Artists for which files are found include Jean Dubuffet, Ernst Ludwig Kirchner, Paul Klee and Georgio Morandi, among many others. Additional records include correspondence, inventory records, sales and purchase records, records of gifts and auctions, and shipping and consignment records.

The records of the Marilyn Pearl Gallery are dated 1925-2000, with the bulk of the ematerial from the period 1976-1993. The collection measures 7.4 linear feet and consists of artists' files, exhibition files, and business records documenting affiliated artists and gallery activities.

The papers of abstract expressionist painters Jackson Pollock and wife Lee Krasner measure 16.1 linear feet and date from circa 1914 to 1984, with the bulk of the material dating from 1942 to 1984. The collection documents their personal and professional lives, as well as the legacy of Jackson Pollock's work after his death. Found are biographical material, correspondence, writings by Krasner and others, research material, business and financial records, printed material, scrapbooks, artwork by others, photographs, interview transcripts, audio and video recordings, and motion picture film.

The papers of Chicago art conservator, Louis Pomerantz, measure 34.2 linear feet and date from 1937 to 1988, with the bulk of the material dating from the 1950s-1980s. The papers document two principal aspects of Pomerantz's professional life: his conservation work for institutions and individuals, and the development of his professional expertise as documented through his writings and teachings, his continued conservation training, and his involvement in professional organizations. Files include scattered biographical material, professional correspondence, interviews, writings, project and client files, teaching and reference files, printed material, and photographic material primarily documenting conservation treatments and techniques.

Acee Blue Eagle was a Pawnee-Creek artist, poet, dancer, teacher, and celebrity. The papers relate to both Blue Eagle's personal and professional life. Also included are some materials of Blue Eagle's friend Mae Abbott and a collection of art by other Indians.