Columbia subject headings:
Hoar, E. R. (Ebenezer Rockwood), 1816-1895.
United States--Politics and government--1865-1898.
United States--Politics and government--1865-1900.
Harvard subject headings:
Hoar, E. R. (Ebenezer Rockwood), 1816-1895
United States--Politics and government--1865-1900.
Princeton subject headings:
Hoar, E. R. (Ebenezer Rockwood), 1816-1895.
United States--Politics and government--1865-1898.