"The Ku Klux Klan in the 1920s: A Concentration on the Black Hills"https://sdshspress.com/journal/south-dakota-history-4-1/the-ku-klux-klan-in-the-1920s-a-concentration-on-the-black-hillshttps://sdshspress.com/@@site-logo/sdshp-logo.jpg
"The Ku Klux Klan in the 1920s: A Concentration on the Black Hills"