Further copies were depositied with the Whitman County Library and the Whitman County Historical Society. The reports were processed as an archival collection by Lisa Bassett, January, 1988. The Washington State Office of Archaeology and Historic Preservation maintains a register of historic sites and buildings, and archaeological sites, for use by land planning offices, cultural agencies, and the general public.
Information is assembled by a variety of means.
In Whitman County the basic survey of historic sites was prepared by a contract research teams of four individuals, headed by Mary Reed of Pullman. The materials are arranged in the order given by the research team.