The fonds documents A.D. Blackader's personal and professional life. The fonds contains correspondence, diaries, autobiographical notes, papers and lectures, certificates, diplomas, testimonials, article reprints, photographs, and some memorabilia.

The collection consists of seven volumes of Elliott's personal diaries, which were bound together, at his own expense, after their completion. These diaries cover the five-year period that Elliott spent serving overseas, primarily in England. The contents of the journals include handwritten entries, sketches and watercolours that were either executed in the pages of the diary or pasted in, and photographs, newspaper clippings, letters, playbills, menus and other paraphernalia that were also pasted into the diary. These serve to document both the development of the war and Elliott's personal experiences. The diaries are generally in chronological order although there are places, particularly in the last three volumes, where the diaries have been bound out of sequence.

The fonds also contains several folio sheets of photographs and clippings regarding Elliott's career.

Abbott's papers reflect her family background, education and private life, as well as her research and publications on medical history. There are no materials relating to her work as a pathologist. Abbott's family background is documented by a printed history (1931) of St. Matthew's, Grenville, of which Joseph Abbott was the first rector, and glass negative views of the family home in St. Andrew's. Records of her education comprise notebooks (1886-1890) for courses at McGill in classics, philosophy, English literature, and science, her graduation photograph, and a photocopy of her address as Donalda Valedictorian in 1890. Private records include diaries (1930-1940), a commonplace-book (1929-1938), and a bundle of notes, clippings, poems, letters and invitations. Three versions of her autobiography survive: the finished "Autobiographical sketch" of 1928 (photocopy), part of an undated autobiography, and a brief autobiographical note. Records of Abbott's historical research and publications include extensive notes on the history of medicine in Québec as well as papers relating to the publication of her History. Other files contain notes on the admission of women to McGill and other universities, the establishment of the Medical Museum, the amalgamation of the medical faculties of Bishop's and McGill with some administrative records of the medical faculty. Dr. Abbott's professional correspondence is represented only by a file on the Federation of Canadian Medical Women, 1938.