Fonds consists of reports and published and unpublished material which reflect his anthropological interests particularly in the areas of religion and mythology. Fonds also includes Burridge's B. Litt. thesis (1950) and Ph.D. thesis (1953), as well as some recordings of his class lectures given from 1986-1987 recorded by anthropology student Lindy-Lou Flynn.

Fonds contains five series: Correspondence, Notes, and Reports (1947-1976); Indigenous Peoples of BC Research (1954-1967); Doukhobors (1948-1954); Northern Development Research (1972); Harry Hawthorn Project (19--); and Audio (1971) series.

The fonds consists of articles, reports and government publications that were amassed by Duff and are related to land claims, government papers, treaties and matters related to Indigenous communities. Included are records on councils, associations and committees, meeting minutes, documents, educational materials, and media-associated materials such as bulletins, Indigenous newspapers, newsletters, and brochures of organizations.