Whitman Mission National Historic Site is a United States National Historic Site located just west of Walla Walla , Washington , at the site of the former Whitman Mission at Waiilatpu . On November 29 , 1847 , Dr. Marcus Whitman , his wife Narcissa Whitman , and 11 others were slain by Native Americans of the Cayuse . The site commemorates the Whitmans , their role in establishing the Oregon Trail , and the challenges encountered when two cultures meet
were slain
Whitman massacre
Whitman Mission National Historic Site