Columbia subject headings:
Labor mobility--United States--History--20th century.
Labor supply--Sunbelt States--History--20th century.
Migration, Internal--United States--History--20th century.
United States--Economic conditions--1945---Regional disparities.
Wages--Sunbelt States--History--20th century.
Wages--United States--Regional disparities--History--20th century.
Working class--United States.
Harvard subject headings:
Labor mobility--United States--History--20th century.
Labor supply--Sunbelt States--History--20th century.
Migration, Internal--United States--History--20th century
United States--Economic conditions--1945---Regional disparities.
Wages--Sunbelt States--History--20th century.
Wages--United States--History--20th century.
Wages--United States--Regional disparities--History--20th century.
Working class--United States
Princeton subject headings:
Labor mobility--United States--History--20th century.
Labor supply--Sunbelt States--History--20th century.
Migration, Internal--United States--History--20th century.
United States--Economic conditions--1945---Regional disparities.
Wages--Sunbelt States--History--20th century.
Wages--United States--Regional disparities--History--20th century.