The Henry J. Anderson Papers consist of some 400 personal letters spanning the adult life of Henry James Anderson. The majority of the correspondences are between Anderson and his wife, Fanny Da Ponte. There are also letters to and from various family members including his father in-law, Venetian librettist Lorenzo Da Ponte.

This collection of correspondence and subject files details a variety of episodes and projects from the career of Pulitzer Prize-winning historian Eric Foner. Included are travel diaries from visits to Africa and the former Soviet Union, as well as correspondence related to Prof. Foner's work with the National Park Service and the Walt Disney Company in rewriting historical markers. It also features reviews and correspondence related to Foner's numerous published books, as well as his professional and scholarly career. It also contains research materials for Foner's major books.

Correspondence, manuscripts, documents, photographs, and memorabilia of Helen May MacLachlan. There are 570 letters from John Masefield and his wife to James Alexander MacLachlan, his wife Mary, and their children Howard James and Helen, 1916-1966, autograph poetry manuscripts, drawings, clippings, and 43 books presented by Masefield to Helen MacLachlan. Also, correspondence about the Theodore Roosevelt Association from Horace Marden Albright, Ethel Roosevelt Derby, Hermann Hagedorn, and others as well as correspondence from personal friends; and photographs of the MacLachlan family and friends.

The Duer Family papers include correspondence, diaries, genealogical manuscripts and notes, miscellaneous poetry, and early photographs, daguerreotypes, tintypes, engravings, and illustrations (the Duer coat of arms). The collection depicts aspects of social customs in Old New York, patriotism, and life abroad.

The LaGuardia Memorial House Records document the settlement's activities from its earliest years as "The Home Garden" to its current social service programs for the youth of East Harlem. They offer a unique view of the first wave of the settlement movement in America, and document social conditions, demographic change, political activity, philanthropy and social work in East Harlem over a 90 year period. The records include: annual reports, board minutes and correspondence, headworker correspondence, financial records, fundraising information, and photographs.

The diary is a detailed account of Abbott's trip from Sydney, Australia to the Philippines, Hong Kong, Macao, China and Japan. There are numerous pen-and-ink sketches of landscape, architecture, historical sites, and inhabitants, and maps, some in water color. Pasted in the volume are memorabilia such as menus, hotel brochures, postcards, photographs, clippings, calling cards, etc. Of special interest are his accounts of the various native Christian communities he visited. Following the text there is a name index. In addition to the volume there are some related letters, documents, memorabilia and published maps.

This collection contains the speeches of Seth Low. The material within the collection spans from 1878 to 1916 and contains Low's opinions on political (with an emphasis on municipal government), collegiate, and religious matters.

The collection consists of materials used by Frederick Fried in his research and writing about folk art and material culture, especially related to Coney Island, Brooklyn, New York. A significant portion of the collection consists of the personal archive of William F. Mangels, which was purchased by Fried in 1955. Mangels was a designer and manufacturer of amusement rides and founder of the American Museum of Public Recreation at Coney Island. Subjects include amusement parks, amusement rides, architecture, bathing pavilions, beaches, beauty contests, carousels, carousel animals, Brooklyn, coin-operated machines, Coney Island, exhibitions, games of chance and skill, hotels, mechanical rides, mechanization, parades, pleasure railways, recreation, roller coasters, sideshows, transportation, and other subjects related to American material culture and popular amusement.

The Historical Subject Files Collection documents Columbia University history and related topics from 1754 to the present. The collection includes articles, booklets, clippings, correspondence, memoranda, non-photographic images, notes, pamphlets, posters, press releases, programs and reports.