John C. Calhoun and the price of union : a biography / John Niven. Niven, John. Calhoun, John C. (John Caldwell), 1782-1850. United States. Congress. Senate Biography. Legislators United States Biography. E340.C15 N58 1988 328.73 NIV 19 Includes index. Bibliography: p. [347]-353. Baton Rouge : Louisiana State University Press, c1988. c1988. 1988 Text xvi, 367 p. : eng Southern biography series United States Politics and government 1815-1861. United States