The Housing Files comprise 8 cubic feet of material covering the years 1896-1962. The bulk of the material relates to John D. Rockefeller, Jr.'s activities in the housing field during the 1920s and 1930s. However, there are significant sections which detail the interests of Mr. Rockefeller, Sr. in Cleveland and New York City, and David Rockefeller in the Morningside Heights project. A few scattered files cover the activities of Messrs. John, Nelson, and Laurance Rockefeller in this field. Substantively, these files deal with Mr. Rockefeller, Jr.'s involvement with housing reform and housing projects during two distinct time periods: the period of great optimism and activity during the 1920s, and the period of destabilization and disengagement from the field after the coming of the New Deal and into the 1940s.