The Hellmuth Wolff Organ Collection consists primarily of organ plans, pamphlets, photographs, books and periodicals, and personal correspondence. The majority of these documents are associated with or represent one of the fifty organs in Wolff’s opus. In addition to depicting Wolff’s instruments, the collection of organ plans also includes Wolff’s drawings for proposed but not-constructed organs, plans by other organ builders, and plans drawn by Wolff that are based on historical models and treatises by writers such as Dom Bédos. Of the photographs, most are associated with specific Wolff organ projects and represent a span date of the late 1960s to the early 2000s. Also in the photograph collection are images of historical organs in Europe, which Wolff presumably used in modelling and designing several of his instruments, as well as images associated with other organ projects by builders such as Casavant Frères, Karl Wilhelm, and Rieger, all of whom Wolff worked with before establishing his own workshop in Laval. The collection of pamphlets includes programs, program notes, and concert series information for several of the Recitals and concerts performed on Wolff’s instruments. Of the periodicals and books, titles include The American Organist, Choir & Organ, and Orgelforum. Also in the collection are several three-dimensional models, or maquettes, of Wolff organs.

The Tundra Books fonds contains a collection of archival records documenting Tundra's publishing history. It includes correspondence with Tundra authors and artists, most notably with William Kurelek. Parts of the archival material document the development and production of each title and May Cutler's dealings with government and funding agencies. The archival materials document a significant chapter in Canadian post-war publishing history.

These materials comprise a microfilm of the Lande collection in Library and Archives Canada, as well as his publication Canadian Historical Documents and Manuscripts (Montréal, 1977-1982). A card index to the Lande Collection in Library and Archives Canada may be consulted at the University Archives.

The collection consists of ephemera, artifacts, and publications related chiefly to the Expo 67 World Fair in Montreal and some documents relating to its continuation, Man and His World (Terre des Hommes), an exhibition that was the successor to Expo 67. Many of the records and artifacts were produced by participant countries and sponsors or by the Canadian Corporation for the 1967 World Exhibition. Ephemera includes postcards, visitor passports, and ticket stubs, while other textual documents include guidebooks, magazines, catalogues, books, clippings, information manuals, and some unpublished planning documents. Artifacts include license plates, vinyl records, letter opener, bottle caps, shopping bags, and pins. The collection features pamphlets and brochures for numerous pavilions, events, services, and countries featured, as well as many maps for the Expo 67 grounds and documents related to subsequent seasons of Man and His World.

File consists chiefly of letters, receipts, customs documents, and other materials related to a patient's procurement of the disproven cancer drug Krebiozen from 1960 to1961. Also contains clippings and articles about Krebiozen, which was introduced in the 1950s and proven to be fraudulent as a treatment in the early 1960s. Includes correspondence with the Krebiozen Research Foundation and Stevan Durovic, one of the perpetrators of the Krebiozen fraud. Also contains a publication entitled "The dangers of radiation," produced by the Independent Cancer Research Foundation. One additional letter dated 1958 is from the Chairman of the "Committee for a Fair Test of Krebiozen."

The collection consists of written correspondence between Dr. Clarence B. Farrar and Dr. Franklin G. Ebaugh concerning reproductive rights for victims of rape in relation to the case of a Denver woman who was the victim of rape in 1955. The woman ended up giving birth to a child after she was denied an abortion by doctors and lawyers. The collection also includes a three-page editorial titled "Legal Abortions" that cites Chapter 40, Article 2, Section 23 of the Colorado Revised Statutes 1953.

The Paul Pedersen Collection consists of Paul Pedersen’s complete portfolio of published and unpublished compositions, sketches, lecture notes and writings. In addition, it contains documentary artifacts including correspondence, teaching and course materials, concert programmes and posters, project reports, etc, that chronicle his early education and life in Alberta and Toronto, through his professorship and deanship at McGill University and finally his appointment of Dean and professor of Music at the University of Toronto.

The Richard Coulter Collection provides extensive documentation for a period of approximately thirty years in the history of the Canadian Broadcasting Corporation (CBC). It constitutes an invaluable resource for research in Canadian music culture, and the CBC in particular and prominent Canadian composers and performers. The Richard Coulter Collection consists of the radio scripts, production information and publicity connected with programs and program series commissioned, developed and broadcast on CBC Radio in Canada in the 60s, 70s and 80s. The collection also contains audio recordings of a portion of the programs produced. The collection features such prominent North Americans such as Glenn Gould and John Cage. It is divided into ten series and contains approximately 17,000 items. The majority of the collection consists of documents and correspondence from Richard Coulter’s CBC office files relating to the CBC radio programs, special events and talent festivals that he produced. These include radio and television scripts, correspondence, administrative files, project reports, concert programs, publicity, promotional information, press clippings, payment information, contracts, production and technical information, scores, and audio tapes.

The collection consists of reports and plans for urban and rural areas from all provinces of Canada and some international cities, including Boston, New York, Chicago, France, and London, dating from the late 1950s to the 1990s. Most of the material consists of plans and reports for future land-uses that are revised, usually every decade. It also includes regulations for these areas, such as zoning. Some reports deal with sectorial policies such as housing, transportation, conservation, or environmental protection.

Collection consists of photograph albums and publications from Jean Drapeau's library related to significant events that occurred during his mandates as mayor of Montreal (1954 to 1957 and 1960 to 1986). Photograph albums, brochures, and publications represent Expo 67 and its reiteration, Man and his World (Terre des Hommes), which ran from 1968 to 1986. The 1976 Montreal Olympic Games are documented in programmes and photograph albums. The collection also includes records of Drapeau's political life, including transcripts of his speeches from 1955-1957, photograph albums related to his municipal political party, the Civic Party of Montreal (Parti civique de Montréal), and presentation copies of books.