Long 2007. Long, John H (2007). "IA: Consolidated Chronology". Iowa: Consolidated Chronology of State and County Boundaries. Archived from the original on February 1, 2023. Retrieved May 24, 2024 – via Newberry Library.
Long 2007. Long, John H (2007). "IA: Consolidated Chronology". Iowa: Consolidated Chronology of State and County Boundaries. Archived from the original on February 1, 2023. Retrieved May 24, 2024 – via Newberry Library.