Fonds shows Dr. Allan McMillan's activities as a country doctor in the Eastern Townships of the end of the 19th century. |a The fonds consists of 6 daybooks separated into 6 vols.: v. 1: 22 Apr. 1876-18 Sept. 1885, v. 2: 22 Sept. 1885-7 March 1887, v. 3: 15 March 1894-24 Feb. 1897, v. 4: 1 Aug. 1898-30 June 1900, v. 5: 1 July 1900-8 June 1905, v. 6: 12 June 1905-14 July 1908.

Fonds contains the financial records of A.R.V. White for his years of private practice. It includes journals, cash books, ledgers and receipts relating to his income and expenditure for his practice in Stanstead, as well as records relating to his bonds and stocks. The fonds contains thirty volumes entitled Journal, Cash book and Ledger filed by year from 1935 to 1964, and a file with loose inserts .

Fonds documents Frederick Augusutus Rees' activities as a physician in Bermuda. The fonds contains a ledger, an index to the ledger, notes and letters.

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.