Columbia subject headings:
African Americans--Illinois--Chicago--History--20th century.
African Americans--Southern States--Migrations--History--20th century.
Chicago (Ill.)--History--1875-
Migration, Internal--United States--History--20th century.
Harvard subject headings:
African Americans--Illinois--Chicago--History--20th century.
African Americans--Southern States--Migrations--History--20th century.
Chicago (Ill.)--History--1875-
Migration, Internal--United States--History--20th century
Princeton subject headings:
African Americans--Illinois--Chicago--History--20th century.
African Americans--Southern States--Migrations--History--20th century.
Chicago (Ill.)--History--1875-
Migration, Internal--United States--History--20th century.