Columbia subject headings:
Stevens, Thaddeus, 1792-1868.
Harvard subject headings:
Stevens, Thaddeus, 1792-1868--Biography.
United States--History--Civil War, 1861-1865
United States--Politics and government--1865-1869.
United States. Congress. House--Biography.
Princeton subject headings:
Stevens, Thaddeus, 1792-1868.