Columbia subject headings:
Harvard subject headings:
United States--History--1849-1877.
United States--History--Civil War, 1861-1865
United States--Social conditions--1865-1918.
United States--Social conditions--To 1865.
Princeton subject headings:
United States--History--1849-1877.
United States--History--Civil War, 1861-1865.
United States--Social conditions--1865-1918.
United States--Social conditions--To 1865.