Created by William and Mary students for Econ 449, American Economic Mobility Over Two Centuries. Source for the underlying data: Rastogi, S., Johnson, T. D., Hoeffel, E. M., & Drewery, M. P. (2011, September). The Black Population: 2010. Retrieved from US Census Bureau. (2016, October 20). Decennial Census Datasets. Retrieved from Data Source: US Census Bureau 2010 Demographic Profile Data