From NowPublic:
This documentation includes slave schedules from Sept. 8, 1860, which list as the slave owner, “W.A. McCain.” The schedules list the McCain family’s slaves in the customary manner of the day — including their age, gender and “color,” labelling each either “black” or “mulatto.” The slaves ranged in age from 6 months to 60 years.
Douglas A. Blackmon, author of Slavery By Another Name, which tells of a form of slavery extended well into the Twentieth Century until the start of World War II, through the use of the prison camp system that existed throughout the Southern states in the United States, wrote an article, Two Families Named McCain, that appeared at the Wall Street Journal online on October 17, 2008.