Fonds contains mainly J.E. Buchanan's correspondence, notably his correspondence with Phyllis Buchanan prior to their marriage, newspaper clippings, agendas and administrative paperwork concerning Phyllis Buchanan and her family, with material related for the First World War and children education in the first half of the 20th century.

Consists of 2 architectural drawings on paper of Canada Cement Company Building, 606 Cathcart Street, Montreal, Quebec, 1921 (1955 copies). Includes front elevation, details of cols. pilons etc., 2nd and 3rd floors).

The fonds consists of manuscripts and drafts of literary compositions and other working documents, as well as professional and personal correspondence.

The fonds consists of the records of the Zoological Society of Montreal for the entirety of its existence, from 1964-2016. These records were generated in the pursuit of the Zoological Society’s goal to enhance public awareness of wildlife conservation issues through speakers, film screenings, field trips, special events, and large projects. The records also reflect the Society's charity to zoological, ecological and conservation causes. The administration of the Society, its interactions with its members, and its projects and events are documented through minutes, correspondence, communications, published articles, financial documents, reports, and proposals. The Society’s interests and activities are also reflected through books, objects from their offices, audio and video materials, and 5243 photographs, most of which are stored in photo albums. The fonds also contains the records of the Zoological Society of Canada, which were created to administer the Canadian Society similarly to the Montreal Society, with the goal of expanding the organization’s reach nationally.

The fonds is comprised of the following series: 1) Activities (1965-2013); 2) Administration (1964-2016); 3) Artifacts (1980-2004); 4) Books (1967-1991); and 5) Newsletters (1967-2016).

The fonds contains photographs, drawings, textual records, and other material used by France Gagnon Pratte as the basis for her 1987 book, "Country Houses for Montrealers, 1892 - 1924: The Architecture of E. and W.S. Maxwell". There are also records related to a book project on the architecture associated with the Canadian Pacific Railway Line.