The fonds contains fourteen series: Organizational Affiliations (1921to1963), Articles and Reviews (1921to 1956), Correspondence (1876 to1980), Personal Material (1904 to1960), Addresses and Writings (1914 to 1959), Subject Files (1936 to1956), Printed Material (1855 to1965), UBC (1931 to 1952), Sage Family (1915 to 1971), Research Files (19‐‐), Miscellaneous Material (19‐‐), Publications Collected by Sage (19‐‐), Printed Materials Collected by Sage (19‐‐), and Photographs (1913? to 1964) series.