"About Us". Confederated Tribes of the Umatilla Indian Reservation. Archived from the original on September 20, 2020. Retrieved October 20, 2017.
doi.org
Heizer, Robert Fleming (1942). "Walla Walla Indian Expeditions to the Sacramento Valley". California Historical Society Quarterly. 21 (1): 1–7. doi:10.2307/25160976. JSTOR25160976.
Hussey, John Adam; Ames, George Walcott Jr. (1942). "Preparations to Meet the Walla Walla Invasion, 1846". California Historical Society Quarterly. 21 (1): 9–21. doi:10.2307/25160977. JSTOR25160977.
Lozar, Patrick Stephen. "An Anxious Desire of Self Preservation": Colonialism, Transition, and Identity on the Umatilla Indian Reservation, 1860-1910 (MA thesis). University of Oregon. hdl:1794/13277.[page needed]
Heizer, Robert Fleming (1942). "Walla Walla Indian Expeditions to the Sacramento Valley". California Historical Society Quarterly. 21 (1): 1–7. doi:10.2307/25160976. JSTOR25160976.
Hussey, John Adam; Ames, George Walcott Jr. (1942). "Preparations to Meet the Walla Walla Invasion, 1846". California Historical Society Quarterly. 21 (1): 9–21. doi:10.2307/25160977. JSTOR25160977.