Columbia subject headings:
Labor unions--Southern States--History.
Stevedores--Labor unions--United States--History.
Harvard subject headings:
Labor unions--Southern States--History.
Stevedores--Labor unions--United States--History.
Stevedores--United States--History--20th century.
Princeton subject headings:
Labor unions--Southern States--History.
Stevedores--Labor unions--United States--History.