There is a river called Bok Chitto that cuts through Mississippi. In the days before the War Between the States, in the days before the Trail of Tears, Bok Chitto was a boundary. On one side of the river lived the Choctaws. On the other side lived the plantation owners and their slaves. If a slave escaped and made his Beautiful Feet Books resource: https://www.bfbooks.com/products/crossing-bok-chitto