"Racial Theories and the Genetic Basis for Democracy." Address at meeting sponsored by the "Lincoln's Birthday" Committee. New York City, September 18, Box: Series 10, Box 41. Henry Agard Wallace Papers, MsC0177. University of Iowa Special Collections. https://aspace.lib.uiowa.edu/repositories/2/archival_objects/403241 Accessed April 30, 2024.