Fonds consists of documents, which illustrate the founding, and the activities of the American Osler Society. Included are the administrative and financial documents, minutes, reports, correspondence of the officers, correspondence with members, files regarding links with other organizations and a survey. The fonds also contains documents related to membership, the annual meeting, the William B. Bean Student Awardship, the John P. McGovern Award Lectureship and publications generated by the association. Fonds contains the following series:
P125/A Constitution and Structure
P125/B Administration
P125/C Correspondence
P125/D Finances
P125/E Membership
P125/F Annual Meeting
P125/G William B. Bean Student Research Award
P125/H John P. McGovern Lecture
P125/I Public Relations and Links with other Organizations
P125/J Publications
P125/K Special Projects
P125/L Archives

The Penfield fonds consists of over eighty metres of Penfield's personal and professional records dating from his childhood up until his death in 1976, including during his career at the Montreal Neurological Institute. The materials in the fonds include photographs, correspondence, manuscripts and drafts of publications and speeches, research notes, glass slides, bound reports, films, and academic gowns.

The fond consists of artifacts, bound volumes, photographs, and records from the Montreal Medico-Chirurgical Society. Included are correspondence, minute books, reports, monthly bulletins, a register of members, memorabilia, and albums of clippings and photographs.

Files 46-62 in particular include a significant amount of minutes, newsletters, and event information. Correspondence, reports, publications, press clippings and photographs comprise a smaller portion of the files. Secretarial and annual reports, activities, and minutes from the Rheumatology section are included. The society's gavel is part of this fonds.

Consists of manuscript of "The Real Ernest Dowson", by Edgar Jepson (approximately 1908; later recast as pages 245-248 of "Memoirs of a Victorian"), accompanied by a few items of correspondence and some verses by Plarr on journalism.

The fonds consists of books, letters, documents, drafts, publications, photographs, and several artifacts collected by W. W. Francis and Marian Francis Kelen over the course of their lifetimes. Many books and documents relate to Sir William Osler and the Osler family including several personal letters, the Deed of Trust documents regarding the Bibliotheca Osleriana, drafts of Osler's works, and a wooden travelling trunk that belonged to Edward Revere Osler. The fonds also includes original poetry written by Marian Osborne, W. W. Francis, and Marian Francis Kelen.

Record of births and deaths, 1812-1899; diaries, 1820-1821, 1824-1825, 1898-1899; copy book of family letters, 1790-1886; genealogical tree and register of Charlottenburgh municipality, Ontario, 1851 and 1876 to 1880.

William Badgley's papers form the bulk of the family's papers and consist of a book of legal notes and judgments, 1801-1826; legal commissions, 1823-1866; as well as circulars, petitions and correspondence for the Constitutional Association, 1834-1839. Other papers include family correspondence, 1823-1829, and deeds of sale, 1831-1852, of James Thompson Badgley.

These papers consist of Sheppard's letters to his sister, Margaret, in England, 1841-1861, and a few incoming letters from family and friends including one from his son William about the Prince of Wales' visit in 1860.

Correspondence, accounts, journals maps, etc., documenting Bissett’s career with the Hudson’s Bay Company. The Photostats (in C.1 and C.2) include Bissett’s journal and accounts at the Red River, 1854-1855, and a journal “Lachine to the Sandwich Islands” 1858-1859. There are also journals for 1859 and 1867. The original documents (in C.3) include correspondence with the Hudson’s Bay Company, 1858-1875, and accounts, 1860-1873. There are Bissett’s commissions as Chief Trader (1858) and as Chief Factor (1872), and a list of Chief Traders and Factors, 1855-1879. There are also some plans / maps, sketches, and photographs including a sketch of the Hudson’s Bay Post at Honolulu, ca. 1860.

The collection consists of correspondence, publishers' agreements, receipts, telegrams, and a Travelers Insurance policy. It also includes the manuscript for the article "Yankee Doodle, Miss Columbia & Ahngmaloktok," which was published in St. Nicholas, Volume 32, Number 2 (1904) under the title "Yankee Doodle and Miss Columbia." The policy from The Travelers Insurance Company of Hartford, Connecticut, is for Robert E. Peary, dated November 13, 1909. The policy amount is US 50,000 with a premium of US 611.10, covering the period from November 1909 to August 1910. The collection also contains a letter from Ballard & Garrett, Inc. to Broadway Magazine, Inc., acknowledging the official receipt of The Travelers Insurance policy covering Robert E. Peary, a two-page Agreement between Robert E. Peary and Broadway Magazine, Inc., dated November 4, 1909, in which Peary agrees to write a story about his journey to the North Pole, Peary's signed receipt of the agreement and a letter from Benjamin B. Hampton, President of Broadway Magazine, Inc., expressing consent for the Frederick A. Stokes Company to publish all or part of Peary's story, Peary's handwritten copy of a telegram to the President of Hampton's Magazine regarding additional article, as well as the magazine's telegram consenting to his request, two handwritten letters from Peary regarding his writing materials (1892) and thanking the Aluminum Coal Company for supplying his ships (1898). It also includes a typed letter acknowledging the receipt of the North Pole flag (1910), and a typewritten letter from Benjamin Hampton to Commander Robert E. Peary, dated October 2, 1909, regarding Mr. Peary's payment. Lastly, there is a typewritten letter from The American Magazine to Hampton's Magazine, returning the loaned letter from Commander R. E. Peary. The manuscript of "Yankee Doodle, Miss Columbia & Ahngmaloktok" is in File 2 (16 leaves, leaves 2 and 5 are missing).