The following is a report of multiple weeklong research trips that I conducted at the Rockefeller Archive Center over the past year. In particular, it covers research related to my dissertation project on the expansion of the cattle industry during the post-World War II period. Access to the Nelson Rockefeller papers, International Basic Economy Corporation (IBEC) records, David Rockefeller papers, Rockefeller Foundation records, and Winthrop Rockefeller papers provided me the opportunity to trace the underlying social and material networks of the industry, especially in terms of cattle breeding and ranch development. Moreover, the scientific reports from the Rockefeller Foundation (RF) and Ford Foundation (FF) archives provided me with insights into the increasingly global nature of cattle production, the role of beef in development projects, and the ways in which such institutional knowledge is deeply connected to specific local environmental conditions. Throughout this report, I argue that by more clearly understanding the complex networks that were motivated and constructed through Rockefeller financing, scholars of 20th century livestock and meat production can gain a deeper sense of the vital role that cattle have played in shaping mid-20th century agricultural practices in the U.S. and abroad. Moreover, such records highlight the importance of continuing to promote histories that de-emphasize western centers of power as arbiters of science and development. As I reveal in this report, projects sponsored by individual Rockefeller family members, as well as by the RF, FF, and IBEC were negotiated processes that were constrained by particular social and environmental conditions.