Columbia subject headings:
Corporations--Political activity--United States--History.
Liberalism--United States--History.
Political science--Political activity--United States--History.
United States--Politics and government--1901-1953.
United States--Politics and government--19th century.
Harvard subject headings:
Corporations--Political activity--United States--History.
Liberalism--United States--History
Political science--United States--History
United States--Politics and government--1901-1953.
United States--Politics and government--19th century.
Princeton subject headings:
Corporations--United States--Political activity--History.
Liberalism--United States--History.
Political science--United States--Political activity--History.
United States--Politics and government--1901-1953.
United States--Politics and government--19th century.