Columbia subject headings:
African Americans--History--1863-1877.
African Americans--History--To 1863.
Free African Americans--History.
Slavery--United States--History.
Harvard subject headings:
Abolitionists--United States--History--19th century
African Americans--History--1863-1877
African Americans--History--To 1863
Antislavery movements--United States--History--19th century
Free African Americans--History.
Free African Americans--United States--History.
Slave insurrections--United States--History--19th century.
Slavery--United States--History
Princeton subject headings:
Abolitionists--United States--History--19th century.
African Americans--History--1863-1877.
African Americans--History--To 1863.
Antislavery movements--United States--History--19th century.
Free African Americans--United States--History.
Slave insurrections--United States--History--19th century.
Slavery--United States--History.