This collection primarily contains architectural drawings, photographs, business records and reference materials related to the projects and designs of architectural and engineering firm Abbott, Merkt and Company. A subsidiary portion of the collection includes drawings, photographs and papers related to the life and career of Richard H. Tatlow, III, president of Abbott Merkt, as well as the firms and agencies for which he also worked.

This collection primarily contains architectural drawings, correspondence, business records, and a small number of photographs related to the projects of Emery Roth & Sons and its subsidiary entities. A large portion of the entities are represented only in the Office Records series and are identified as such. Some projects on which Emery Roth & Sons acted as architect of record are not represented in this collection, most notably the Twin Towers of the World Trade Center.

This collections includes architectural drawings, files and photographs of projects designed by Woodbridge and his various firms, circa 1928-1960s. These include buildings at Presbyterian Church, Savoonga, St. Lawrence Island, Ala.; Cole Memorial Chapel, Wheaton College, Wheaton, IL; Amherst College, Mass.; Smith College, Mass.; St. Mary the Virgin Church, Chappaqua, N.Y.; St. John's Chapel and Library, Hobart College, Geneva, N.Y.; the Keene Valley Congregational Church, Keene Valley, N.Y.; and the Brick Presbyterian Church and the Episcopal Church Center, both in New York City; as well as other churches, residences, and miscellaneous projects. Also, included are drawings done by Woodbridge while a student at the Columbia School of Architecture, early 1920s; photographs of some of Woodbridge's buildings taken mostly by the architectural photographer Samuel H. Gottscho; a small sample of Woodbridge's correspondence, 1941-1942, documenting his role as chairman of the American Institute of Architects Committee on Architectural Services, relating to the role architects could play in the war effort; sketchbooks of various international locations; and photographs and documents relating to archaeological excavations at Antioch in Pisidia, Turkey.

This small collection contains primarily correspondence, itineraries, and papers related to Fitch's publications, travel, and the administration of Columbia University's Historic Preservation program. There are copies and drafts of several articles and reports generated for various organizations authored by Fitch and others (all reports are noted in italics in the spreadsheet). Also included is the unfinished manuscript of Fitch's final book project on American architecture. Of particular note among the reference materials are fifty-two photographs of Richard Neutra's VDL Research House in Los Angeles, some taken by architectural photographer Julius Shulman.

This collection primarily contains materials related to Percy and Harold Uris and their real estate businesses. Correspondence, financial records, and estate papers document the professional and personal lives of the brothers and their wives. The bulk of the business records are from their properties at 380 Madison Avenue and 300 Park Avenue. There is limited information about the other Uris properties and Uris Building Corporation. Finally, the collection contains records from the Uris Brothers Foundation, Inc about the family's philanthropic endeavors.

This collection contains architectural photographs, drawings and records related to the architectural projects and designs of Warren and Wetmore, principally in the United States, but also representing commissions in Canada, Cuba, and Puerto Rico. Unfortunately, the bulk of architectural drawings produced by the firm are no longer extant. Additionally, it holds a variety of photographs and other records used as reference materials in the course of Warren and Wetmore's professional work. Lastly, a small group of student and personal papers and photographs from Whitney Warren completes the collection.