Columbia subject headings:
Philadelphia (Pa.)--History--Civil War, 1861-1865.
Philadelphia (Pa.)--Social conditions.
Harvard subject headings:
Philadelphia (Pa.)--Economic conditions.
Philadelphia (Pa.)--History--Civil War, 1861-1865.
Philadelphia (Pa.)--Social conditions.
Princeton subject headings:
Philadelphia (Pa.)--Economic conditions.
Philadelphia (Pa.)--History--Civil War, 1861-1865.
Philadelphia (Pa.)--Social conditions.