William Ellison's fascinating story is told by Michael Johnson and James L. Roark in their book, Black Masters: A Free Family of Color in the Old South. At his death on the eve of the Civil War, Ellison was wealthier than nine out of 10 white people in South Carolina. He was born in 1790 as a slave on a plantation in the Fairfield District of the state, far up country from Charleston. In 1816, at the age of 26, he bought his own freedom, and soon bought his wife and their child. In 1822, he opened his own cotton...