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?
A statue is near the campus of Whitman College of Marcus Whitman. The inscription at the base says, 'MY PLANS REQUIRE TIME AND DISTANCE'.