Columbia subject headings:
Benjamin, J. P. (Judah Philip), 1811-1884.
Confederate States of America--Politics and government.
Slave trade.
Harvard subject headings:
Benjamin, J. P. (Judah Philip), 1811-1884.
Confederate States of America--Politics and government.
Slave trade
Princeton subject headings:
Confederate States of America--Politics and government.
Slave trade--United States.
Slavery--United States--Justification.