Columbia subject headings:
Foreign workers, Jamaican--Cuba--History.
Foreign workers, Jamaican--History.
Foreign workers, Jamaican--Panama--Canal Zone--History.
Jamaica--Emigration and immigration--History.
Working class--Jamaica--History.
Harvard subject headings:
Foreign workers, Jamaican--Cuba--History.
Foreign workers, Jamaican--History.
Foreign workers, Jamaican--Panama--Canal Zone--History.
Jamaica--Emigration and immigration--History.
Working class--Jamaica--History.
Princeton subject headings:
Foreign workers, Jamaican--Cuba--History.
Foreign workers, Jamaican--History.
Foreign workers, Jamaican--Panama--Canal Zone--History.
Jamaica--Emigration and immigration--History.
Labor--Jamaica--History.