Columbia subject headings:
Courtship--United States--History--19th century.
Love--History--19th century.
Love-letters--United States--History--19th century.
Sex customs--United States--History--19th century.
Harvard subject headings:
Courtship--United States--History--19th century.
Love--History--19th century.
Love-letters--United States--History--19th century.
Sex customs--United States--History--19th century.
Princeton subject headings:
Courtship--United States--History--19th century.
Love--History--19th century.
Love-letters--United States--History--19th century.
Sex customs--United States--History--19th century.