Columbia subject headings:
Harvard subject headings:
Civil rights--Pennsylvania--Philadelphia--History--20th century.
Discrimination in housing--Pennsylvania--Philadelphia--History--20th century.
Liberalism--Pennsylvania--Philadelphia--History--20th century.
Mount Airy (Philadelphia, Pa.)
Philadelphia (Pa.)--Race relations.
Princeton subject headings:
Civil rights--Pennsylvania--Philadelphia--History--20th century.
Liberalism--Pennsylvania--Philadelphia--History--20th century.
Mount Airy (Philadelphia, Pa.)
Philadelphia (Pa.)--Race relations.