Columbia subject headings:
Scott, Dred, 1809-1858.
Slavery--United States.
Harvard subject headings:
Missouri compromise.
Sanford, John F. A., 1806 or 1807-1857--Trials, litigation, etc.
Scott, Dred, 1809-1858.
Slavery--Law and legislation--United States
Slavery--United States--Legal status of slaves in free states
Princeton subject headings:
Scott, Dred, 1809-1858.
Slavery--United States.