Columbia subject headings:
Cabinet officers--United States--Biography.
Simon, William E., 1927-2000.
Statesmen--United States--Biography.
Harvard subject headings:
Cabinet officers--United States--Biography
Simon, William E., 1927-
Simon, William E., 1927-2000.
Statesmen--United States--Biography.
Princeton subject headings:
Cabinet officers--United States--Biography.
Simon, William E., 1927-2000.
Statesmen--United States--Biography.