Research in the History of Economic Thought and Methodology Volume 37C features a symposium celebrating the centenary of the influential economist and historian of economic thought Robert Heilbroner. Luca Fiorito, Harald Hagemann, Edward Nell, and Steven Pressman contribute to the symposium. The volume also features original general-research contributions from Samuel Hollander and Luca Fiorito, as well as a new discovery of material made by Maxime Desmarais-Tremblay and Marianne Johnson from the archives of Richard A. Musgrave.