Shaw, Albert (October 1913). "Dedicating the Great Keokuk Dam". The American Review of Reviews. XLVIII (4). New York: The Review of Reviews Company: 407.
"Station: Keokuk Lock Dam 19, IA". U.S. Climate Normals 2020: U.S. Monthly Climate Normals (1991–2020). National Oceanic and Atmospheric Administration. Retrieved June 25, 2021.