The Knights of the Ku Klux Klan swept the United States in the 1920s, and the Pacific Northwest was no exception. Thousands of local men and women joined the Klan during this period, drawn by the moral platform ostensibly supported by the Klan. Their announced enemies were vice and corruption, but their targets were Blacks, Catholics, Jews, and the foreign-born. Qualifications for membership included being native born, white, Protestant, Gentile, and an American citizen.
From the description of Records, 1924-1928. (Eastern Washington State Historical Society). WorldCat record id: 42687034