The papers of "Jackrabbit" Johannsen reflect his personal, professional and recreational activities, mainly between 1934 and 1985. The largest part of the papers consists of correspondence with friends and organizations, particularly relating to skiing and outdoor life. Family relations are also covered. A series of brief journals provides a record of some of his daily activities, from 1948 to 1984. The remainder of the fonds include publications about Johannsen, photographs, maps and personal documents such as passports.

The fonds is divided into five main categories covering Pierre Gloor's activities as a researcher and administrator, 1950-1993. 1) Research, 1952-1993, including original studies, research materials in the form of slides, etc., and letters to scholarly journals; 2) Meetings, Symposia and Conferences, containing documents recording Gloor's presentations; 3) Lectures; 4) Correspondences with academics and institutions; and 5) Administrative, documenting Gloor's activities within the McGill University Faculty of Medicine, Montreal Neurological Institute, and Montreal Neurological Hospital.

The Aileen Ross fonds consists mainly of correspondence (1935-1990), research files, a brief autobiography (1940-1980), biographical material (1920-1990), and specific talks (1942-1973). Included are personal diaries (1918-1962), appointment books (1946-1992), and Matthew Ibbotson's correspondence to Ross (1921-1927). Books, original and printed articles, newspaper clippings, and reviews of books and articles are also part of the collection. Non textual records consist of several photographs.

This fonds consists of Ashley's student notes for McGiII courses in English, Chemistry, Physics, Mathematics, and Spanish, radio scripts, theatre programs, clippings and photographs all reflecting Ashley's active participation in campus life. Of particular interest are Ashley's notes annotated with drawings and draft articles commenting on life at McGill.

The collection consists of the following four categories: biographical, obituary, pictorial, and memorial. Apart from copies of two addresses delivered from England by radio to the meeting of the Royal Society of Canada at McGill (1930), and an extensive collection of off-prints, the biographical documentation is about, not by, Rutherford. It comprises newsclippings about Rutherford's work and awards (1909), a curriculum vitae to 1907, a copy of Shaw's article on Rutherford's departure from McGill (1907) and E.R. Terroux's catalogue of Rutherford's McGill laboratory.

Photographic materials include five individual portraits of Rutherford (1905-1937) and a group portrait of Rutherford with other members of the Macdonald Physics Laboratory (1904-1905). There are also two views of the Macdonald Physics Building lecture theatre and the Physics Department staff taken at the Rutherford Memorial Lecture, 1937.

Obituary materials largely consist of newsclippings about Rutherford's death and copies of commemorative articles. Also included are two drafts of A.N. Shaw's essay Rutherford at McGill (1938), as well as correspondence concerning this article. There is also a copy of McGill's telegram of sympathy to Lady Rutherford, her reply, and some correspondence concerning the disposal of Rutherford's desk.

Various memorial projects in Rutherford's name are documented by A.N. Shaw's correspondence files (1939-1957). These include incoming and copies of outgoing correspondence about the Rutherford Plaque, the Rutherford Museum (with E.R. Terroux), and the joint Royal Society-Royal Society of Canada Rutherford Memorial Scholarships. This last file largely concerns subscriptions to the fund, but also contains campaign literature and reports. Furthermore, copies of correspondence (1896-1937, 35 cm (Large MSS), the originals of which are at the Cavendish Laboratory, Cambridge University are located in the Archives.

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.

Very few of the McLeod papers actually concern the Observatory. However, his work for the railways and in Newfoundland is documented, as are his views on the education and employment of engineers. The basic record for the early part of his career is a diary kept from 1870 to 1875, regarding student days and early work on the Observatory. An essay, "Winter under canvas" (1868) describes an early surveying job, and a letter from his father (1872) inquires about his academic progress. His work for the railways is documented by three letters of recommendation, and two letters (one from Stanford Fleming) on the work of his colleagues in the West. The Newfoundland survey (1875) is described in McLeod's diary, a manuscript essay "Across Newfoundland" (1876), his printed reports and three letters. His work at McGill is represented by six letters (largely official acknowledgements of appointments), and McLeod's manuscript notes on McGill history. McLeod's concern with the engineering profession is reflected in two addresses on education and professional development, and copies of about a dozen letters to Sir Wilfrid Laurier (1906-1908), C.A. McGrath and E.F. Wurtele (1912), largely on the employment of engineers in the civil service.

Tobin's papers consist of a scrapbook and photo album containing programmes, menus and newspaper clippings concerning the "King Cook" celebrations, 1911-1927, newspaper obituaries and photographs of Medical Faculty professors, programmes for social events of the Medical Society, Pharmaceutical Society and the McGill Employees Association (of which Tobin was secretary) and letters of recommendation from the Medical Students Society, 1921-1931.

Scott's papers comprise notes, photographs, reprints and some correspondence on Biblical archeology, particularly weights, seals and coins (ca 1920-1966).

Selected papers of the Hart Family include a diary kept by Bernard Samuel Judah (an in-law of the Harts) during a voyage to the United States to visit his son Samuel, 1827-1828; a Jewish calendar belonging to Alan Judah Hart with notices of family births and deaths, 1903-1930, and few diary entries, 1917-1919; a few items of correspondence of Alan Hart and his family relating to family history, 1923-1972; some notes on family history, and 25 portraits (photographs, silhouettes) of family members from 1823 to ca 1960.