John Filson, Daniel Boone (1793). “The discovery, settlement and present state of Kentucky, and an introduction to the topography and natural history of that ... country. Also colonel Daniel Boon's narrative of the wars of Kentucky”, p.35
William H. Seward's argument as defense attorney during the trial of an African-American criminal defendant, Auburn, New York (July 1846) as quoted in "Works of William H. Seward", Volume I (p. 417), 1853.