Fonds shows Dr. Philip Franklin's relations and activities with Sir William Osler regarding the Post-Graduate Scheme in England and the American Hospital in England during WWI. The fonds contains letters, telegrams and an agenda and printed material regarding a meeting about the American Hospital.

Fonds documents the Mallochs' activities related to their medical and literary work. The fonds contains notes, correpondence, commonplace books, account books, material related to publications, family memorabilia, scrapbooks, photographs, telegrams, postcards and certificates.

Fonds documents the friendship between Mrs. Alice Russel and Dr. Abraham Flexner. It also includes documents collected by Mrs. Russel on Sir William Osler and Maude Abbott. The fonds contains correspondence and newspaper clippings.

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.

Letter to William Osler from W.S. Greenfield, 7, Heriot Row, Edinburgh, Scotland. He writes that practically all the London men of position are doing what they can to get Osler elected to the Chair of Medicine at the University of Edinburgh. He informs Osler that he must provide eight copies of every document and testimonial he sends into the Curators. He tells Osler that if he does come to Edinburgh, he should be sure to make large demands for what he wants and needs, and he will be sure to get it all.

Letter to William Osler from Ellen Osler, 83, Wellesley Street, Baltimore, Maryland, USA. She relates news of family and friends, particularly regarding the poor health of Charles Gwyn, Chattie's husband.

Letter to William Osler from Silas Weir Mitchell, 1524, Walnut Street, Philadelphia, Pennsylvania, USA. Mitchell thanks Osler for his address on Locke. He will be in Baltimore and wonders if he may stay the night with the Oslers. Mitchell comments favourably on Flexner and his work in Philadelphia.