Columbia subject headings:
Presidents--United States--Staff.
United States--Politics and government--1933-1945.
United States--Politics and government--1945-1989.
Harvard subject headings:
Presidents--United States--Staff
United States--Politics and government--1933-1945.
United States--Politics and government--1945-1989.
Princeton subject headings:
Presidents--United States--Staff.
United States--Politics and government--1933-1945.
United States--Politics and government--1945-1989.