Columbia subject headings:
Fugitive slaves--Legal status, laws, etc.--United States.
United States. Fugitive slave law (1793)
United States. Fugitive slave law (1850)
Harvard subject headings:
Fugitive slaves--Legal status, laws, etc.--United States
United States. Fugitive slave law (1793)
United States. Fugitive slave law (1850)
Princeton subject headings: