Columbia subject headings:
Harvard subject headings:
Democratic Party (U.S.)--History--19th century.
Republican Party (U.S. : 1854- )--History--19th century.
United States--History--Civil War, 1861-1865
United States--Politics and government--1845-1861
Princeton subject headings:
Democratic Party (U.S.)--History--19th century.
Political parties--United States--History.
Republican Party (U.S. : 1854- )--History--19th century.
United States--Politics and government--1845-1861.
United States--Politics and government--1861-1865.