Created by William and Mary students for Econ 449, American Economic Mobility Over Two Centuries. Source for the underlying data: Claibourn, M. P. (2012, April). Blacks in Virginia: Demographic Trends in Historical Context. Retrieved from https://demographics.coopercenter.org/sites/demographics/files/NC_Blacks-in-Virginia_4_30_12_r_0.pdf. Old Historical City, County and State Maps of Virginia. (2019, September 25). Retrieved from https://mapgeeks.org/virginia/#!fancybox/3344cafc/1890-Map-of-Delaware-Maryland-Virginia-and-West-Virginia.jpg. US Census Bureau. (2018, January 16). 1890 Census Bulletins. Retrieved from https://www.census.gov/library/publications/1890/dec/bulletins.html.