Neta Lohnes Frazier was born in Owosso, Michigan on April 18, 1890, and published over fifteen volumes during her career as a writer. The Neta Lohnes Frazier Papers houses manuscripts, drawings, and supplementary material for the published works of Neta Frazier, most of which concern Marcus and Narcissa Whitman and the history of the Walla Walla, Washington area.

The Whitman Centennial, Incorporated Records contains materials from and information about the Whitman Centennial celebration. The celebration was held from August 13 to August 16, 1936 to mark the 100th anniversary of the Whitmans’ arrival to Waiilatpu, near modern day Walla Walla, Washington.

The Whitman Mission National Historical Site Collection, which dates from 1947 to 1987, contains materials related to the Whitman Mission Historical Site, a memorial for Marcus and Narcissa Whitman and their impact on the Oregon Trail and the Native American population. The collection contains informational booklets, newspaper clippings, correspondence, and an academic paper entitled "Whitman Mission Overview.”