This collection contains over 37,000 35mm slides, 3,000 glass lantern slides and garden files that may include descriptive information, photocopied articles (from journals, newspapers, or books), planting lists, correspondence, brochures, landscape plans and drawings. Garden files were compiled by Garden Club of America (GCA) members for most of the gardens included in the collection. Some gardens have been photographed over the course of several decades; others only have images from a single point in time. In addition to images of American gardens, there are glass lantern slides of the New York Flower Show (1941-1951) and trips that GCA members took to other countries, including Mexico (1937), Italy, Spain, Japan (1935), France (1936), England (1929), and Scotland. A number of the slides are copies of historic images from outside repositories including horticultural and historical societies or from horticultural books and publications. The GCA made a concerted effort in the mid-1980s to acquire these images in order to increase its documentation of American garden history. Because of copyright considerations, use of these particular images may be restricted.

The papers of painter, teacher, and writer Hans Hofmann measure 29.92 linear feet and 5.00 GB and date from circa 1904 to 2011, with the bulk of the materials dating from 1945 to 2000. The majority of the papers were created after 1932 and document Hofmann's life and professional career after settling in the United States. Among his papers are personal and professional correspondence; records of his schools in Munich, New York City, and Provincetown, Mass.; writings and notes; financial records; photographs; printed matter; estate records; and a small number of personal papers of his second wife, Renate Schmitz Hofmann. Hofmann's personal papers are augmented by a large selection of printed matter, including exhibition catalogs, articles, news clippings, and monographs about Hofmann and modern art, as well as documentary projects including Tina Dickey's compilation of oral histories and records of Hofmann's students, and research materials, sound and video recordings, digital material, and motion picture film created and gathered by Madeline Amgott during the production of two video documentaries about Hans Hofmann released in 1999 and 2002. Hofmann's Library was acquired with his papers; inscribed/annotated volumes have been retained with the collection.

This collection documents the activities of Joe Glazer's record label Collector Records. Materials include the label's original commercial recordings, paper records related to day-to-day business operations and production, field recordings made by Joe Glazer, and Glazer's personal music collection.

The papers of American sculptor Stephen Antonakos measure 24.2 linear feet and 1.73 GB and date from 1932-2014, with the bulk of the material dating from 1960-2014. The collection documents Antonakos's pioneering work in neon, through biographical material, correspondence, writings and notes, project files, exhibition files, printed and digital material, and photographs.

The papers of Henry Varnum Poor measure 12.9 linear feet and date from 1873-2001, with the bulk from the period 1904-1970. Correspondence, writings, artwork, printed material and photographs document Poor's work as a painter, muralist, ceramic artist and potter, architect, designer, writer, war artist, educator and a co-founder of the Skowhegan School of Painting and Sculpture. Also found is extensive information about the design and construction of Crow House, his home in New City, New York, commissions for other architectural projects, and his personal life.

The Beatrice Medicine papers, 1913-2003 (bulk 1945-2003), document the professional life of Dr. Beatrice "Bea" Medicine (1923-2005), a member of the Standing Rock Sioux tribe, anthropologist, scholar, educator, and Native rights activist. The collection also contains material collected by or given to Medicine to further her research and activism interests. Medicine, whose Lakota name was Hinsha Waste Agli Win, or "Returns Victorious with a Red Horse Woman," focused her research on a variety of topics affecting the Native American community: 1) mental health, 2) women's issues, 3) bilingual education, 4) alcohol and drug use, 5) ethno-methodologies and research needs of Native Americans, and 6) Children and identity issues. The collection represents Medicine's work as an educator for universities and colleges in the United States and in Canada, for which she taught Native American Studies courses. Additionally, because of the large amount of research material and Medicine's correspondence with elected U.S. officials and Native American leaders, and records from Medicine's involvement in Native American organizations, the collection serves to represent issues affecting Native Americans during the second half of the 20th century, and reflects what Native American leaders and organizations did to navigate and mitigate those issues. Collection materials include correspondence; committee, conference, and teaching material; ephemera; manuscripts and poetry; maps; notes; periodicals; photographs; training material; and transcripts.

The Grace Jeffers Collection of Formica Materials consists of textual files, photographs, slides, negatives, drawings, blueprints, posters, advertisements, product brochures, newsletters, and informational pamphlets documenting the history of the Formica Corporation and the use of Formica brand plastic laminate.

Memorabilia of fairs and World's Fairs throughout history, both in the United States and abroad, including photographs, stereographs, panoramas and slides; printed materials; postcards; sheet music; philatelic material; stationery and greeting cards; menus and food service items; posters; shopping bags; motion picture films; and other items.

Collection consists of records documenting one of the oldest advertising agencies created in Philadelphia. The company then moves to New York and expanses to international markets. During its history NW Ayer & Sons acquires a number of other advertising agencies and is eventually purchased. The largest portion of the collection is print advertisements but also includes radio and television. NW Ayer is known for some of the slogans created for major American companies.

Papers documenting the farming and family life of the Robinson family of Prince George's County and after 1975, Charles County, Maryland. Papers documenting the farming and family of the Via family of Greene County, Virginia, Washington, D.C., Prince George's and Calvert Counties, Maryland, by 1949.