This is a report of research conducted at the Rockefeller Archive Center (RAC) during August 2012 for my dissertation, "Prediction and Control: Global Population, Population Science, and Population Policy in the Twentieth Century."1 The records housed at the RAC are integral to my dissertation, which is a history of global demography, beginning in 1920, and of the relationship between demography, population change, and population politics. It focuses on population projections -- estimates of future population size and structure -- as a key interface between these three dimensions. Since I have not yet had a chance to fully analyze the material I found, this report will simply discuss what those materials are and how I plan to use them in my dissertation. The dissertation is comprised of three sections, and material from the RAC will be important to each.