William Smith, "Mormonism: A Letter from William Smith, Brother of Joseph the Prophet", New York Tribune, 1857-05-19. Online reprint by sidneyrigdon.com (Dale R. Broadhurst)
McKiernan, F. Mark (1979) [1971]. The Voice of One Crying in the Wilderness: Sidney Rigdon, Religious Reformer. Independence, Missouri: Herald House. p. 56. ISBN9780830902415. OCLC5436337.