These materials include correspondence regarding the enrollment of Joseph Guyon at the Keewatin Academy in Prarie Du Chien, Wisconsin. The headmaster of the Keewatin Academy claimed the Carlisle Indian School administration and Coach Glenn "Pop" Warner were threatening to blackmail the Academy into releasing Guyon so he could continue to play football at Carlisle.
October 1 - 21, 1914
National Archives and Records Administration
RG 75, CCF Entry 121, #106935-1914-Carlisle-820