Prehistoric cultural affiliation(s) include Tucannon Cultural Phase, Cascade Cultural Phase and Nez Perce dating back to 4999 BC.
Many famous people are associated with these Whitman County historic places including Robert Crampton McCroskey, John McGregor, Orville M. Collins, William Swain and Edwin H. Hanford.
Some of the country's most noteable architects helped create the Whitman County places including Stephen & Josenhaus, Milwaukee Railroad Co., Aaron Kuhn, Whitman County, Seymour Manning, Stephens & Josenhans, J.A.L. Waddell, Michael Ruddy, William E. Chapman and Spokane & Inland Empire Railroad. Prominent architectural styles found in Whitman Country are Romanesque, Bungalow/Craftsman and Classical Revival.