Columbia subject headings:
African Americans--Employment--Southern States--History--19th century.
Sharecropping--Southern States--History--19th century.
Harvard subject headings:
African Americans--Employment--Southern States--History--19th century.
Sharecropping--History--19th century.
Princeton subject headings:
African Americans--Employment--Southern States--History--19th century.
Sharecropping--Southern States--History--19th century.