Columbia subject headings:
Prostitution--California--San Francisco--History--19th century.
San Francisco (Calif.)--Economic conditions.
San Francisco (Calif.)--Moral conditions.
Harvard subject headings:
Prostitution--California--San Francisco--History--19th century.
San Francisco (Calif.)--Economic conditions.
San Francisco (Calif.)--Moral conditions.
Princeton subject headings:
Prostitution--California--San Francisco--History--19th century.
San Francisco (Calif.)--Economic conditions.
San Francisco (Calif.)--Moral conditions.