Columbia subject headings:
Harvard subject headings:
Public opinion--United States--History--19th century
United States--Civilization--1865-1918.
United States--History--Civil War, 1861-1865--Social aspects.
Princeton subject headings:
Public opinion--United States--History--19th century.
United States--Civilization--1865-1918.
United States--History--Civil War, 1861-1865--Social aspects.