Robert M. Owens. Mr. Jefferson's Hammer: William Henry Harrison and the Origins of American Indian Policy.:Mr. Jefferson's Hammer: William Henry Harrison and the Origins of American Indian Policy.
J. C. A. Stagg . Borderlines in Borderlands: James Madison and the Spanish‐American Frontier, 1776–1821. (Lamar Series in Western History.)New Haven : Yale University Press . 2009 . Pp. x, 307. $50.00.