This fonds contains personal correspondence, working papers, articles, manuscripts, research material, and lecture notes. Much of the material deals with Dr. Timlin's work with the Social Science Research Council of Canada (SSRCC) and her research on immigration policies from 1896 to 1960. Included in the research material are copies or microform of various primary sources, such as Sessional papers (1892-1895), the Laurier fonds, and the Sifton fonds.