Barnett, S.W. History of the Civil Service. Cedar Falls, IA: S.W. Barnett, 1968.

Hartman, John. History of Black Hawk County. Chicago: S.J. Clarke Publishing Company, 1915.

Kohl, Jay, Director. Public Safety Department’s 1998 Annual Report. Cedar Falls, IA: Woolverton Printing, 1963.

Melendy, Peter. A History of Cedar Falls, 1843-1893. Cedar Falls, IA: Peter Melendy: 1893.

Van Metre, Isaiah. History of Black Hawk County and Representative Citizens. Cedar Falls, IA: Biographical Publishing Company, 1904.