Fonds consists of personal letters between Howard family members and close relations (C. P. Howard, William Osler, Grace Osler, the Wright family etc.). Subjects range from wedding engagement congratulations for C. P. Howard and Otillie Wright, personal introductions from Grace Osler, to professional appointment letters. There are original photographs (as well as a few copies) of candid Osler family moments, formal family portraits, hospital photos of Osler at work, as well as several professional portraits of William Osler by prominent Montreal photographers. The fonds also includes miscellaneous reprints, booklets, and various other publication materials such as R. P. Howard's valedictory addresses to several graduating classes, personal copies of medical case studies, Olser's handwritten medical notes from 1875-1878, as well as original caricature sketches by Edward Revere Osler. In addition, there is a small photo album (in its own presentation box) with John Hopkins Hospital staff portraits (names included) from 1902-1903. The photo album is stamped "C.P.H." on the front cover.\nIncluded in the fonds are the following books: The Holy Bible (Oxford, 1912), The Poems of Edgar Allan Poe (Diamond Edition, New York, 1881), and Robert Bridges The Spirit of Man (Longmans Green and Co., London, 1916).

The fonds consists of two bound volumes of notes on Endocrinology (some handwritten, some typed) from 1938-1939 and 1941-1942 while Masson was a PhD candidate at McGill University. Lectures given by: J. S. L. Browne, H. Selye, D. L. Thomson, C. F. Denstedt, C. Lyman Duff, C. P. Leblond, D. McEachern, R. L. Noble. Also included are three volumes of published works.

The fonds also consists of three bound volumes of Masson's published work from various medical journals (published in France, Canada, and USA) between 1932-1959. The articles are mostly in English, and some are in French.

Fonds documents Eugene P. Link's work for his publication T.B.'s Progress : Norman Bethune as Artist, published in 1991. The fonds contains research materials, correspondence and photographs.

Fonds documents Dr. Frederick W. Wiglesworth's professional activities.

Fonds documents Dr. Theodore L. Sourkes' professional activities.

Fonds documents Dr. Lella's research activities while at McGill.

The fonds contains the manuscript of his book William Osler : A Life in Medicine.

The fonds consists of Dr. Bensley's research notes and correspondence, particularly in relation to his publication McGill Medical Luminaries.

A partial inventory of this collection reveals that it is largely composed of the scattered personal papers of the members of the Worthington Family, ca. 1833-1944, especially those of Edward Dagge Worthington and Arthur Norreys Worthington. The fonds also includes a few items pertaining to Edward Bruen Worthington and Asheton N. Worthington. It includes personal, business and professional correspondence; certificates, diplomas, tests, maps, sketchbooks, loose ledger sheets, testimonials, photographs and newspaper clippings. The greater part of the collection consists of the papers of Edward Dagge Worthington including correspondence related to his business affairs, medical career and family matters (1840-1883); medical certificates and diplomas, (1840-1847); two sketchbooks, (1840?); with caricatures of John Goodsir, Alexander Munro, Robert Knox and William Robertson; testimonials (1865, 1867); a resume of his education covering 1833-1843; newspaper clippings and photographs. The papers of Arthur Norreys Worthington are primarily correspondence describing his military activities in South Africa, 1900.