This archive consists of photocopies of the portion of the ledger of William Lauder, concerning the Arts Building project, 1838-1841. An index to the entire ledger is included.

The official records of the Montreal Ladies' Educational Association comprise minutes of the General and Executive Committees, 1871-1885; an account book, 1871-1885; a fee register, 1880-1885; a list of students of the M.L.E.A. and after 1885 of McGill, 1881-1890; a register of certificates granted, including comments on the student's performance, 1871-1885; and printed prospecti and annual reports. A 'Register of Teachers', 1871-1881, contains advertisements for school teachers and governesses.

The fonds contains Dr. Jacques' journal of medical accounts receivable entered in an account book issued with blank pages and bound in half suede with green cloth boards. The account book was kept between November 1879 and January 1881. A title handwritten on a paper label on the cover reads "Journal pour 1879-1880-1881." The author's full name comes from within the journal (L. A. George Jacques, M. D.) and from Lovell's Montreal directory for 1881-1882 (Louis A. George Jacques, M. D.). Laid in at p. 207 is an ink blotter featuring pharmaceutical advertising for Glyco-Heroin (Smith).

Collection contains two financial documents related to McGill College. The first is a memorandum between the College and its creditors in which the College agrees to pay out dividends and pay in installments towards the balance of the College's debt. It is signed by the individual creditors as well as by the principal of McGill College, Edmund A. Meredith. The memorandum contains a list of creditors of McGill College with their names and occupations listed, including William Lyman, druggist, Robert Abraham, printer, John Keller, merchant, and many others. A note dated 24 March 1847 with a response from representatives of the creditors is pasted on. The second document is a ledger sheet dated from 1844 to 1847 with the caption: "The Directors of McGill College to Joseph Hitchens."

The fonds documents John Bell's activities related to his medical studies at McGill in Surgery, Materia Medica and the Institutes of Medicine, as well as his work as a private physician in Montreal. The fonds consists of notebooks, a photocopy of his MS McGill medical thesis, letters from his personal and professional life, one of his medical kits, receipts from merchants, various subscriptions, societies and clubs. The fonds also contains various reprints of Bell's articles, including the 1878 article, "Case of Diphtheria, Acute Laryngeal Symptoms", as well as the City of Montreal's "Mortality of Montreal" – a list of all deaths in Montreal in January 1878.

The Sir William Osler Collection, distinct from the Bibliotheca, is an extensive archival holding of Osler's correspondence (including eighteen hundred original letters), daybooks, accounts, engagement books, legal documents, book invoices, membership certificates, notebooks, lectures, addresses, newspaper clippings, photographs, books with manuscript additions, and miscellaneous loose items formerly inserted into individual books in his library. The collection also contains various family papers, including correspondence of Lady Grace Revere Osler and Edward Revere Osler.

The company's records contain administrative, financial and publicity material. The administrative series comprises the minutes of the directors from 1929 to 1955 and of the executive committee from 1949 to 1956. An engagement book records contracts between the company and its employees, 1902-1906. Henry Morgan's business correspondence covers the period 1847-1850, and includes a few personal letters to his brother James. Financial records cover both internal operations and stock transactions. The former are documented by an account book, 1845-1848; ledgers, 1870-1889; and diaries, 1884, 1936; the latter by lists of stock holders, 1954-1960; and records of transfers of Morgan's common stock, 1954-1961. Also included are files of invoices, receipts and cheques, 1846-1852. Publicity materials largely centre around anniversaries. Scrapbooks of newspaper clippings, other printed materials and photographs cover the years 1936-1945, culminating in the company's centennial, for which a typescript history was prepared.