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.

Letter from F.J. Shepherd to Dr. Armstrong. Letter edged in black. Shepherd refers to a bill Dr. Armstrong received in error. He says he has not been on the best of terms with his son-in-law.

Letter from John Stewart to Dr. Armstrong written from Halifax. Stewart details the symptons and the treatment of his illness.

Fonds primarily documents Armstrong’s social life. They consist overwhelmingly of correspondence for the period 1909-1933. Letters from his professional colleagues, such as Sir William Osler, F.J. Shepard, Edward Archibald, William J. Mayo and others in the Mayo Clinic, are concerned largely with personal greetings, association memberships, or Medical Faculty business, particularly honorary degrees. Armstrong's non-medical correspondents include Lord Beaverbrook, Lord Atholstan, Sir Hugh Allan, Arthur Meighen, George Foster and Herbert Symonds. Topics include politics, Armstrong's war work and honours, some medicals matters, and personal news. Appended to this main series are obituaries and letters of sympathy to Armstrong's widow (1933), six photographs, including one of Armstrong in an operating room, and admission cards and diplomas from Armstrong's student years.