Columbia subject headings:
Labor policy--United States--History.
Perkins, Frances, 1880-1965.
Politicians--United States--Biography.
Harvard subject headings:
Labor policy--United States--History
Perkins, Frances, 1880-1965.
Politicians--United States--Biography
Princeton subject headings:
Labor policy--United States--History.
Perkins, Frances, 1880-1965.
Politicians--United States--Biography.