Columbia subject headings:
Harvard subject headings:
Antislavery movements--United States
Dana, Richard Henry, Jr., 1815-1882.
United States--Politics and government--1849-1861.
United States--Politics and government--1849-1877.
Princeton subject headings:
Antislavery movements--United States.
Dana, Richard Henry, Jr., 1815-1882.
United States--Politics and government--1848-1861.