Hello Looking! Here is what we wrote on the Lane County Historical Society Facebook page last summer. Most of the essay is from the Changing Demographics exhibit that was on display over 7 years ago: 
The Klan presented itself as an organization promoting "100% Americanism" and a defender of morality and values. The population of Lane County, like much of Oregon, was primarily white- which caused a challenge for the Klan when choosing an appropriate target group to arouse support for their cause. There were few local residents of African, Asian or Jewish descent.