History of Hardin County, Iowa, Springfield, Ill.: Union Pub. Co., 1883. - index, 895 bios online
Past and Present of Hardin County, Iowa, ed. by William J. Moir. Indianapolis: B. F. Bowen, 1911. - index, 280 bios online
Pioneer Days in Iowa Falls, by I. A. Nichols. Fort Dodge, IA: Messenger Printing Company, 1944.
History of Iowa Falls, 1900-1950, by I. A. Nichols. Iowa Falls, IA: Hecht Printing Company, 1956.
Memories..the First 150 Years in Hardin County. Times-Citizen of Iowa Falls