The Woodlawn Cemetery archive documents the history of the grounds, mausolea, monuments, and operations of Woodlawn Cemetery, founded in 1863 in The Bronx, New York, and one of the largest in the United States. The collection includes architectural designs records, maps, photographs, correspondence, construction and maintenance records, and other historical documents, spanning 140 years of the cemetery's operations.

This small collection consists of 11 drawings, work receipts, bills, specifications, printed material, and a some correspondence and legal papers related to the erection of The Buckingham Hotel.

Architectural historian Sarah Bradford Landau is a scholar, advocate, and public servant in New York City, active from the late 1970s into the second decade of the 21st century. Landau's research includes a focus on the architecture of William Appleton Potter and Edward Tuckerman Potter (on whom she wrote her dissertation), the gothic revival (especially its influence on American church architecture), and the skyscraper. The bulk of the collection is made up of research and lecture files. Additionally, the collection includes a number of personal effects, including portraits of Landau as well as her ephemera files, which include clippings, correspondence, and other mementos from the colorful and celebrated career of a public intellectual beloved in many circles in New York City and beyond.

Alan Burnham (1913–1984) was an American architect and architectural historian who served as the Executive Director of the New York City Landmarks Preservation Commission from 1965 to 1973 as well as the Commission's Director of Research. This collection consists mainly of reference materials related to architectural history and New York City architectural history, as well as professional papers and papers relating to Richard Morris Hunt and the history of New York City apartment buildings.

August Trenkmann purchased the lots located between Centre, Broome and Lafayette Streets (originally Elm Street) in New York City at different times during the late nineteenth and early twentieth centuries. Trenkmann constructed buildings on five of the seven lots. This small collection represents two of those buildings, both designed by DeLemos & Cordes, Architects. For the 7-story factory building at Nos. 247-249 Centre Street and 167-171 Elm Street, the collection consists of Specifications of the Iron Work and Materials (1890). For the 7-story office building on the southwest corner of Broome and Centre Streets (403 Broome Street), the collection includes Specification for the Steam Power, Heating and Ventilating Apparatus and Article of Agreement between Trenkmann and Jackson Architectural Iron Works (1895).

This collection includes original and reprographic architectural drawings, black and white photographic prints, typescript specifications, and other papers relating to the architectural practice of Thomas W. Lamb, as well as his colleague and successor, John J. McNamara.

This collection primarily contains original correspondence--including letters, telegrams, and postcards-- to California architect Robert D. Farquhar from Chester A. Aldrich. Also included is a small group of letters from Amey Owen Aldrich to Farquhar. Most letters are accompanied by envelopes; a very few contain photographs, clippings and other ephemera. Matters discussed in the correspondence vary widely from intimate personal subjects to observations and reports on the work of Carrère & Hastings and Delano & Aldrich, the American Red Cross and its work with soldiers in Italy during World War I, the rise of Fasicsm in Italy, economic hardships during the Depression, and the state of American and European architecture.

New York architect, historian, and attorney Andrew Alpern co-wrote Holdouts! The Buildings That Got In The Way with Seymour Durst. Holdouts! examines over 50 examples of New York City holdouts or building owners who refuse to make way for office buildings and other urban designing projects.

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.

This collection contains holograph, typescript, and photocopied papers, correspondence, and photographs collected by Adriana Kleiman in the course of her research on the life and work of architect Frank Freeman (1861-1949), as well as many of his clients.