Columbia subject headings:
Fugitive slaves--United States.
Slavery--United States--Controversial literature.
Slavery--United States.
United States. Fugitive slave law (1793)
United States. Fugitive slave law (1850)
Harvard subject headings:
Fugitive slaves--United States
Slavery--United States--Controversial literature--1852.
Princeton subject headings:
Fugitive slaves--United States.
Slavery--United States--Controversial literature--1852.