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?
The mission at Waiilatpu had a sawmill supplying it with needed cut lumber. It was located in the Mill Creek drainage. Lumber was needed for the split rail fences and finishing the houses built at the mission.