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.