This collection is composed primarily of correspondence, memoranda, course material, photographs, drawings and slides. The collection is broken down into personal and academic papers. The academic papers pertain mainly to Colquhoun's career as a writer and theoretician and professor at Princeton University's School of Architecture. The personal papers consist mainly of correspondences with friends and family, as well as notebooks, which Colquhoun kept from the 1940s. The visual materials (photographs and drawings) straddle the two categories. Many of the photographs were taken by Colquhoun himself, to be used later in his teaching, while the drawings consist of both student work and reproductions of works from his practice with John Miller. For the majority of the collection, Colquhoun's folder titles have been maintained and the material has been arranged chronologically. The collection is arranged into four series.

This collection contains the photographs, negatives, contact sheets, correspondence, printed material, and research files of and about American photographer Arthur Rothstein (1915-1985).

Chip Lord (1944–) is an architect, media artist, and Professor Emeritus of Film & Digital Media at the University of California, Santa Cruz. Lord is best known for his work with the art and architecture group Ant Farm, which he co-founded with Doug Michels (1943–2003) in 1968. This collection, gathered by Lord, includes correspondence and material produced between 1968 and 1978, when the group disbanded following a fire at their Pier 40 studio in San Francisco, CA. In addition, the collection includes correspondence and material produced in the following decades that document Ant Farm-related products, anniversary celebrations, exhibitions, lectures, and publications, as well as material documenting litigation (including several cases of copyright infringement over use of Cadillac Ranch), licensing, and royalties.

Clyde H. Dorsett (1925-2007) was an architectural consultant dedicated to mental healthcare design becoming the nation's leading authority in the design and construction of such facilities. Working as lead architectural consultant for the National Institute of Mental Health (NIMH) from 1965 to 1982, he oversaw the federal government's ambitious program to transform the nation's monolithic state mental hospital structure into a wider variety of local and state facilities to address a spectrum of medical and social needs through more precisely tailored, yet humane and informal design approaches. Underpinning the work was the growing conviction that the built environment played a significant role in the healing process, and that such 'scientifically' derived design could be applied to social problems. Based at the institute's offices in Washington D.C., he both advised on individual projects through drawings submitted by architects nation-wide, as well as developing guidelines and standards for the accreditation, certification and funding of construction projects by the federal government. It is of these documents that the present collection largely comprises. He continued advising in the field long after his early retirement from the institute in 1982.

This collection contains audio recordings for 186 different lectures, which have been digitized and are available online to Columbia affilates (and available to our public in our reading room). While the majority of the recordings are from the GSAPP Wednesday Night Lecture series, there are some recordings from other GSAPP sponosored symposiums, panels, and talks. The recordings are arranged in chronological order, with undated recording listed last. No paper records for this lecture series are included in this collection.

Douglas Darden (1951-1996) was an American architect based out of Denver, Colorado. Darden was best known for his book Condemned Building, a collection of ten allegorical projects. This collection contains much of Darden's work for that book as well as the process work for his second book, Laughing Girls, which he was working on at the time of his death. It also contains a large portion of his early works and his professional papers in the form of documents, drawings, photographs, and slides.

Douglas Putnam Haskellan (1899-1979) was an American writer, architecture critic and magazine editor. This collection contains correspondence, memos, articles, speeches, lectures, transcripts, clippings, notes, printed matter, photographs, audiotapes, and memorabilia mainly relating to Douglas Haskell's editorship at Architectural Forum and his professional activities. The collection includes items dating from 1866 to 1979, with the majority of materials dating from the period of 1949 to 1964.

This collection documents the life and career of Edgar Allen Tafel: New York architect, Frank Lloyd Wright historian, and one of the original apprentices of the Taliesin Fellowship from 1932. The collection primarily documents Tafel's professional activities and his later independent architectural career which was most prominent from 1965-1985. The collection is made up of nine series: Personal Papers, Correspondence, Writings, Professional Papers, Office Records, Project Records, Photographs and Slides, Audio-Visual Material, and Printed Material.

The collection consists of 97 audio recordings from music concerts performanced at Taliesin West and Taliesin, Spring Green. The majority of the recordings are from the period after Wrights death, however, there are 12 recordings dated from 1950 to 1955. There are a few recordings of discussion groups sessions; these are likely recordings from the Movement participant's weekly philosophy group meetings held in tandem with Saturday Evening concerts.