The fonds consists of general correspondence (1937-1991), personal correspondence files (1950-1985), and miscellaneous personal records. Fonds also includes lecture notes, outlines and other materials relating to courses taught by Haddock at University of Washington, University of British Columbia and Simon Fraser University (1954-1982). In addition, the fonds contains records of his participation with the UBC Speakers Bureau (1976-1987) and subject files. Fonds includes: Biographical Information, General Correspondence (1937-1991), Personal Correspondence Files (1950-1985), Miscellaneous Personal Records, Course-Related Records (1954-1982), and Subject Files.