Present Kansas National Guard Armory is built on North State Street in Iola. 1957 Allen County Historical Society in incorporated. First rural water district is created. 1958 Humboldt's first annual Biblesta parade is presented. 1959 New Allen County Courthouse and Jail opens.
Old courthouse is torn down.
Stone jail constructed in 1869 no longer used as a jail. 1960 New Gas Elementary School building is built. 1961 Southeast Kansas Mental Health Center at Humboldt opens. Columbia Metal Products plant opens in Iola. Savonburg Public Library opens.