Columbia subject headings:
Harvard subject headings:
Lobbying--United States--History--19th century.
United States--Politics and government--1869-1877.
United States. Congress. House--History--19th century.
Princeton subject headings:
Lobbying--United States--History--19th century.
United States--Politics and government--1869-1877.
United States. Congress. House--History--19th century.