These professional papers of R.A.C. Henry cover every phase of his career from 1911 to 1960. A significant percentage relates to the St. Lawrence Seaway, and covers the period 1920-1960; these files contain information on estimated costs, power and navigation development, canal systems, engineering problems, Canada-U.S. relations, Québec and Ontario hydro, the implications of the project for the Montréal area, and historical aspects. The remaining files likewise contain correspondence, reports, memoranda and notes. Topics covered include railways in Canada and Mexico, 1913-1932; canals, particularly Lachine, Welland, and Sault Ste Marie, 1913-1915; the Québec hydro-electric industry, 1922-1946; Defence Communications Ltd., ca 1949-1954; air transportation, 1944-1957; and various reports on general economic questions or the affairs of specific companies for which Henry was consultant.

The fonds consists of records related to Robert Allen Cleghorn’s professional activities in psychiatry and includes 2 albums of photographs, lists of Cleghorn publications, 4 non-academic papers, a copy of Building on around the past: 50 years of psychiatry at McGill, and a carbon copy of Cleghorn's report to the Canadian Medical Association Journal on the Third World Congress of Psychiatry, 1961.

"Architectural Drawings, 1921-38, 322 drawings." Designs, proposals, additions and alterations to thirty-eight projects for domestic architecture, including the Hallward house (now McGill University's Martlet House) and summer country houses; public commissions such as Murray Park Shelter in Westmount and Westmount City Hall comprise the holdings of the CAC of the work of Robert and Francis R. Findlay.
"Photographs, 1922-38, 51 photographs." Seven of the Findlays' projects are documented by photographs. Included are photographs of finished interiors and exteriors of houses in Westmount as well as the Westmount City Hall.
"Professional Papers, 1928-40, 19 cm."Correspondence, specifications, clippings, pamphlets, invoices, etc., for seven projects; among them the Murray Park Shelter, the Union Twist Drill Company's building in Rock Island, PQ, and houses in Westmount, are found in the Findlay archive.

"Dessins architecturaux, 1921-1938, 322 dessins." Esquisses, propositions, annexes et modifications se rapportant à 38 projets d'architecture domestique dont la maison Hallward (aujourd'hui la maison Martlet de l'Université McGill) et de résidences d'été; la CAC conserve également certains projets publics réalisés par Robert et Francis Findlay, notamment l'abri du parc Murray à Westmount et l'hôtel de ville de Westmount.
"Photographies, 1922-1938, 51 photos." Sept des projets des Findlay sont documentés par des photographies. On trouve entre autres des photos de la finition intérieure et extérieure de certaines maisons à Westmount de même que de l'hôtel de ville de Westmount.
"Documents professionnels, 1928-1940, 19 cm" Correspondance, cahier des charges, coupures, dépliants, factures, etc. relatifs à sept projets dont l'abri du parc Murray, l'immeuble de la société Union Twist Drill à Rock Island (Québec) et des résidences de Westmount.

The Warren Papers consist mainly of manuscripts of addresses, articles and reports prepared by Warren on various aspects of economics and governmental economic policy.

Scott's papers comprise notes, photographs, reprints and some correspondence on Biblical archeology, particularly weights, seals and coins (ca 1920-1966).

Fonds contains lecture notes taken by Robert Struthers at McGill Medical College in 1881-1882, including notes on Pathology, Surgery and Ophthalmology. Lecturers include Robert Palmer Howard, Sir Thomas Roddick and Sir William Osler. There is also a case report by Struthers. The fonds includes two notebooks and a case report.

The fonds consists of Robert Bell's student notebooks related to his medical studies in Surgery, Materia Medica, Practice of Medicine, Obstetrics, Physiology and Clinics at McGill University. The fonds also contains circular letters and medical advertisements. Inventory for acc.732 purchased from John Mappin in 1979 also included in fonds.

The fonds consists of a file of correspondence regarding the publication of R.C. Fetherstonhaugh's McGill University at War 1914-1918 and 1939-1945: raised for use in the Comptroller's Office.