The fonds contains original and typescript letters, manuscript notes, newspaper clippings, journal extracts, reminiscences and more, assembled by Harvey Cushing chiefly between 1920 and 1924 during the course of his research for the biography of William Osler. For the biography, Cushing collected and retyped over 7500 pieces of Osler's correspondence, among which are some original letters.

The fonds is separated into three series: Manuscripts, Working Notes and Osler's Correspondence. It also contains photographs, annual reports, publications, clippings, one watercolor painting, one postcard. Osler's correspondence is further arranged in three subseries based chronologically.

The Nobbs fonds consists of the work of Percy Erskine Nobbs, George Taylor Hyde, Nobbs and Hyde, Nobbs and Valentine, and Nobbs and Nobbs. 526 projects are documented in the Percy Erskine Nobbs Fonds. Architectural drawings form the core of the fonds, providing a comprehensive listing of the drawings by Percy Nobbs and his associates. Arranged chronologically, the inventory reflects respectively the development of the partnerships Nobbs and Hyde (1910-1944), Nobbs and Valentine (1945-1950), and Nobbs and Nobbs (1950-1960). Hugh A. I. Valentine worked only briefly with Nobbs, spending the bulk of his career with the Bell Telephone Company of Canada. His commissioned drawings and student notebooks cannot be directly related to his work with Nobbs, but are nonetheless described in subfonds 8. Subfonds 6 and 7 describe Percy Nobbs's personal papers and three-dimensional objects designed by him which are in the Canadian Architecture Collection.

"Architectural Drawings, professional correspondence, specifications, etc., ca. 1960s, 13 cm, 17 file folders." Unaccessioned materials relating to three projects: St. Helen's School in Dunham, PQ, Camp Amy Molson, and Knox Crescent and Kensington Presbyterian Church on Godfrey Avenue in Montreal.

"Dessins architecturaux, correspondance professionnelle, cahiers des charges, etc., circa 1960, 13 cm, 17 chemises." Le matériel non encore dépouillé se rapporte à trois projets : l'école St. Helen de Dunham (Québec), la colonie de vacances Amy Molson et l'église presbytérienne Knox Crescent and Kensington, avenue Godfrey à Montréal.

Fonds consists of architectural drawings and related paper files, including:

-4 architectural plans (ink on linen) and 3 blueprints (working drawings) for L.E. Waterman Company Limited, Montreal, Quebec 1908, 1917, 1918, with 1 specification.

-Working drawings (elevations, plans, details, structural, electrical, mechanical) for Belgo Building, Montreal, Quebec 1912, 1913,1923, 1924, 1937, 1954, 1958, 1959, 1965, 1970 (10 paper, 30 linen, 14 blueprints).

-Architectural drawings, specifications and correspondence for the Seagrams Building, Montreal, Quebec 1929, 1931, 1955-57:
24 ink on linen
25 pencil on paper
8 pencil on waxed paper; 21 blueprints; 4 blueline prints; 4 reproductive print.
10 design drawings: floor plans, section.
5 development drawings structural plans, elevator hatchway, rear elevation, opening in party wall.
32 working drawings: floor plans, elevations, sections, roof plan mechanical plans.
23 shop drawings: schedule, footing plan, elevations, wiring, mezzanine, stairs, elevator elevator, penthouse, machinery, floor slab, metalwork, structural plans, steelwork, structural details, structural analysis of existing frame, structural steel plans.
23 details: front elevation, display window and shop entrance, revised elevation, stair framing, roof framing, existing party wall, front elevation including wall section and half plans lightwell, framing plan, flush duct, junction box, walker duct, office partitions, stairs, wall sections, vent dome, general office, windows, entrance doorway, stonework, piping, heating system, boiler room, interior elevations, panelling, display window.
1 sheet; Distillers Corporation Building History. July 5, 1974.
De Stein & McCutcheon. Analysis of Capacity of Existing Structural Frame to Support an Additional Story for Distillers Corporation Limited Peel Street Building. July 11,1955.
F.D. Mathias. Specifications for Heating, Plumbing and Ventilation. July 1955.
F. D. Mathias. Specification for Air conditioning. December 1955.
F. D. Mathias. Specifications for Additions and Alterations to 1430 Peel Street Distillers Corporation Limited. August 1, 1955.
F.D. Mathias. Specifications for Alterations to Heating System. June 1957.
Alterations to Heating System Addendum no.1. July 5, 1957.
Specification for Structural Steel.
Correspondence: De Stein & McCutcheon to F.D. Mathias, Montreal, August 8, 1956.
Correspondence: De Stein & McCutcheon to F.D. Mathias, Montreal, October 6, 1956.
F.D. Mathias. Work to be done for 3rd floor alteration. January 21, 1959.

-"Architectural drawings, specifications and soil investigation, Phillips Square Building, Montreal, Quebec 1947 - 1951."
18 pencil on trace, 5 ink on trace, 7 ink on linen, 5 blueline prints, 47 blueprints.
2 survey drawings: subdivision of lot, existing construction.
1 soil study: depth and nature of soil.
2 development drawings: wall section, electrical and boiler room layout.
37 working drawings: sections at main entrance doors, marble floor-main lobby and entrance, lobby and vestibule plan, vestibule showing marble, section through main entrance, main lobby new display windows, elevator pit, roof plan, seventh floor reflected ceiling plan, fourth floor reflected ceiling plan, first floor reflected ceiling plan, fifth floor reflected ceiling plan, second floor reflected ceiling plan, eleventh floor plan, ninth floor plan, eighth floor plan, basement floor plan, sixth floor plan, tenth floor plan, Phillips Square elevation, St. Catherine St. elevation, lane elevation, south elevation, cross section, basement plan, ground floor plan, first floor plan, typical plan, tenth floor plan, roof plan, drainage plan, heating riser, heating plan, lighting plan.
14 structural drawings: cooling tower base,pile cap, pile foundations, wall details, typical reinforced concrete details, caisson, plans: basement, ground floor, typical, tenth floor, roof, penthouse, foundation, awning boxes.
14 details: main stair, new store fronts south of main entrance, window, structural frame lobby partition, main entrance showing bronze and marble, set back for masonry work, lighting recess in lobby ceiling, corner entrance, storefronts revised, main stair, wall section, main entrance, electrical and boiler room layout.
6 shop drawings: riser diagram, location of ducts on fifth floor, eighth floor ductwork, sprinkler plans for basement, ground and first floors.
6 schedules: door, structural beam, structural slab, structural column.
Paper files: mechanical specifications, heating specifications, elevator specifications, specification of materials, soil investigation.

-"Architectural drawings and paper files, Insurance Exchange Building, Montreal, Quebec 1923, 1924, 1939."
45 ink on linen: 43 working drawings, 2 structural drawings.
20 pencil on paper: 20 working drawings.
62 blueprints: 2 surveys, 2 working drawings, 34 structural drawings, 9 electrical drawings, 9 mechanical drawings, 6 shop drawings.
Paper files: 3 specifications; Specification for Insurance Exchange Building, Specification for Plumbing, Heating and Ventilation 1923, Specification for Boilers, Brickwork and Breeching 1923.

-"Architectural drawings, Mansions Development Co. Limited, Montreal, Quebec 1924, 1925."
3 ink on linen: plan of levels of lot, property lines, block plan
4 pencil on paper: working drawings; rear elevations and exterior details.

"Architectural drawings, specifications and correspondence for the Seagrams Building 1929, 1931, 1955-57."
24 ink on linen; 25 pencil on paper
8 pencil on waxed paper; 21 blueprints; 4 blueline prints; 4 reproductive print.
10 design drawings: floor plans, section.
5 development drawings structural plans, elevator hatchway, rear elevation, opening in party wall. <br>32 working drawings: floor plans, elevations, sections, roof plan mechanical plans.
23 shop drawings: schedule, footing plan, elevations, wiring, mezzanine, stairs, elevator elevator, penthouse, machinery, floor slab, metalwork, structural plans, steelwork, structural details, structural analysis of existing frame, structural steel plans.
23 details: front elevation, display window and shop entrance, revised elevation, stair framing, roof framing, existing party wall, front elevation including wall section and half plans lightwell, framing plan, flush duct, junction box, walker duct, office partitions, stairs, wall sections, vent dome, general office, windows, entrance doorway, stonework, piping, heating system, boiler room, interior elevations, panelling, display window.
1 sheet; Distillers Corporation Building History. July 5, 1974.
De Stein & McCutcheon. Analysis of Capacity of Existing Structural Frame to Support an Additional Story for Distillers Corporation Limited Peel Street Building. July 11,1955.
F.D. Mathias. Specifications for Heating, Plumbing and Ventilation. July 1955.
F. D. Mathias. Specification for Air conditioning. December 1955.
F. D. Mathias. Specifications for Additions and Alterations to 1430 Peel Street Distillers Corporation Limited. August 1, 1955.
F.D. Mathias. Specifications for Alterations to Heating System. June 1957.
Alterations to Heating System Addendum no.1. July 5, 1957.
Specification for Structural Steel.
Correspondence: De Stein & McCutcheon to F.D. Mathias, Montreal, August 8, 1956.
Correspondence: De Stein & McCutcheon to F.D. Mathias, Montreal, October 6, 1956.
F.D. Mathias. Work to be done for 3rd floor alteration. January 21, 1959.

"Architectural drawings and paper files Belgo Building, 1912, 1913,1923, 1924, 1937, 1954, 1958, 1959, 1965, 1970."
10 paper, 30 linen, 14 blueprints.
working drawings: elevations, plans, details
structural, electrical, mechanical.

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.

Frobisher's papers comprise a letterbook of the North-West Co. containing copies of letters written by Frobisher from April 1787 to October 1788, two original letters to Simon McTavish, 1796, and one from him, 1787, business and legal documents, largely concerning the estate of James McGill, 1810-1834, and a diary, 1806-1810, mostly a record of where he dined.

Fonds consists of autographed signed letter from Workman to John Auld of Montreal on Workman’s engraved stationery (Matthews lithographer), 25 November 1852.

Collection consists of 36 autograph letters written to James Cameron and his son Archie. The correspondence includes letters by friends, associates, and members of the Cameron family in Toronto, Lake Beauport, Scotland, England, Hull, and Montreal. Subjects include family news, freemasonry, business (regarding deed of sales), factory work in Toronto, curling, and an April Fools' Day letter. With three extant envelopes.

Letters and papers relating to employment with the Hudson’s Bay Company. These include letters of appointment, official announcements, lists of officers of the Hudson’s Bay Company, and an inventory the posts and officers in the Albany River district.