Columbia subject headings:
Black Warrior (Steamer)
Spain--Foreign relations--United States.
Harvard subject headings:
Black Warrior (Ship)
Black Warrior (Steamer)
Seizure of vessels and cargoes.
Slave trade--United States
Spain--Foreign relations--United States.
United States--Foreign relations--Spain.
Princeton subject headings:
Black Warrior (Steamer)
Spain--Foreign relations--United States.
United States--Foreign relations--Spain.