John D. "Colonel Jack" Henderson was a Colonel in the Border Wars of Bleeding Kansas, a series of violent political confrontations in the United States between what years?
John D. Henderson: John D. "Colonel Jack" Henderson was an American editor, rancher, businessman, and pro-slavery politician in the Kansas Territory. John D. Henderson:  He was a Colonel in the Border Wars of Bleeding Kansas. Bleeding Kansas: Bleeding Kansas, Bloody Kansas or the Border War was a series of violent political confrontations in the United States between 1854 and 1861 involving anti-slavery "Free-Staters" and pro-slavery "Border Ruffian", or "southern" elements in Kansas.
1854 and 1861