Architectural drawings and photographs of architectural drawings with some related correspondence of residential and public buildings, churches, libraries, theaters, monuments, and bridges including: the Henry Hudson Bridge, Triborough Bridge, and the Manhattan Bridge in New York; Edward Henry Harriman's Arden House in Harriman, N.Y.; the Alfred I. Dupont mansion in Roslyn, N.Y.; the David A. Reed house in Washington, D.C.; the reconstruction of the Grand Army Plaza in New York City; the Memorial Amphitheater for Arlington National Cemetery; and various bicentennial buildings for Yale University. Of note are drawings of the grounds, details of buildings, and furniture for the New York Public Library, 1908-1909.

Files of the company, 1911-1920, much of which consists of unsucessful architectural bid documents, each noting the architect, building, and location, as well as estimated costs, sketches, and related correspondents. These bid documents represent commissions not awarded to NYATCC, and do, in some cases, indicate the outcome of the bid. Architects represented include McKim, Mead & White; Cass Gilbert; George Post; D.H. Burnham & Company; Warren & Wetmore, Schwartz & Gross, and many others. Also includes correspondence and office memoranda, including some describing the formative years, 1911-1914, of the National Terra Cotta Society, trade catalogs, and job photographs. Also, two albums containing photographs of sample pieces of terra cotta, and month by month construction records for three buildings, including the American Theater (42nd Street, New York, 1892) by Charles Coolidge Haight; the Renaissance Apartments (Brooklyn, N.Y., 1889) and the Imperial Apartments (Brooklyn, N.Y., 1890) both by Montrose Morris.

The Wallace K. Harrison architectural drawings and papers consists of architectural drawings, photographs, correspondence, notes, speeches, manuscripts, press releases, clippings, memoranda, printed material, job lists, curriculam vitae, contracts, articles, and other material related to Harrison's architectural projects. The collection also contains a significant amount of material regarding Harrison's position as director of the Office of Inter-American Affairs, director of planning of the United Nations Headquarters and biographical material. Approximately a third of the collection is made up of photographs. Photographers include Wendy Barrows, Shirley Burden, George Cserna, Y[uzo] Nagata, and Ezra Stoller, among many others. There is also a collection of 148 art books that belonged to Harrison referred to as his "doodle books." A list of these books with brief descriptions of where Harrison drew in them is contained in the finding aid. Projects documented include Lincoln Center, Metropolitan Opera House, Rockefeller Center, Albany Mall (Empire State Plaza), United Nations, X City, ALCOA building, Corning Glass building, First Presbyterian Church, La Guardia Airport, Socony-Mobil building, Battery Park City, Radio City Music Hall, New York World's Fair (1939 and 1964), Institute for Advanced Study, National Academy of Science, Pahlavi National Library Competition, Oberlin College's Hall Auditorium, Pershing Memorial, Rockefeller University, Hopkins Center, The Anchorage, Avila Hotel, and numerous other buildings and residences.

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.