Columbia subject headings:
Freemen--Brazil--History.
Slaveholders--Brazil--History.
Harvard subject headings:
Brazil--Economic conditions--19th century.
Brazil--Social conditions--19th century.
Freemen--Brazil--History.
Slaveholders--Brazil--History.
Princeton subject headings:
Brazil--Economic conditions--19th century.
Brazil--Social conditions--19th century.
Freemen--Brazil.
Middle class--Brazil.
Poor--Brazil.
Social classes--Brazil.