The fonds documents Herbert H. Jasper’s research activities at the Montreal Neurological Institute and the Centre de Recherches en Sciences Neurologiques at the Université de Montréal, his active travel and participation in international symposia and research organizations, his correspondence with an international network of researchers and colleagues, as well as his publishing and editorial work. A small amount of the materials also relate to his teaching activities at the Université de Montréal, as well as his personal life. Records include correspondence, conference and symposia materials, publications, research notes, photographs, and awards, including medals, plaques, and certificates. The majority of the materials are from the 1960s to the 1980s. Arrangement of the fonds varies by series, and includes subject, chronological, and alphabetical arrangement.

The series consist of 1) Research; 2) Teaching; 3) Personal; 4) Photographs

The fonds consists of correspondence, course material, research and interview notes, articles, speeches, transcripts, grant applications, and other records pertaining to Dale Thomson's activities as a researcher, professor, journalist and Liberal Party activist from the 1940s to 1999 in Canada, The United States and other parts of the world. There is also a considerable amount of original, primary source material collected by Dale Thomson for his books. The fonds is composed of the following series:

1. Research Activities
2. Teaching and Administrative Activities
3. Political Activities

Although there are three separate series, it must be noted that some information contained in series files is often relevant to more than that area of activity. This is especially true of correspondence files.