The Not-So-Invisible Nation The KKK in Southwest Minnesota in the 1920s MONDAY, APRIL 27 7:00 p.m. by Dr. Anita Talsma Gaul Join us for an interesting and educational presentation. Cottonwood County Historical Society 812 Fourth Avenue, Windom Light refreshments Sponsored in part by Thrivent. The Not - So - Invisible Nation The KKK in Southwest Minnesota in the 1920s MONDAY , APRIL 27 7:00 p.m. by Dr. Anita Talsma Gaul Join us for an interesting and educational presentation . Cottonwood County Historical Society 812 Fourth Avenue , Windom Light refreshments Sponsored in part by Thrivent .