1961: 5.6 acres transferred from Walla Walla County to provide access from Highway 12.
Whitman Mission National Historic Site: General Management Plan, September 2000. U.S. Department of the Interior, National Park Service.
Monthly Public Use Reports for Whitman Mission National Historic Site
National Park Service, Pacific West Region: Program Authorizations and Program Summaries for Whitman Mission National Historic Site
Did You Know?
Wagons used on the Oregon Trail had to carry nearly 2000 pounds of supplies. They traveled 2000 miles or more to the Oregon Country. Most wagons were pulled by oxen as they could eat the prairie grass and survive without lots of food for lengthy periods.