1. Iowa Yale Public content 1850. 2002-10-30T21:23:15Z. 2018-03-07T15:51:11Z. Wells, John G. (John Gaylord), 1821-1880, cartographer. J.G. Wells. English. Public. Iowa.
2. Sectional map of Crawford County, Iowa [cartographic material]. Yale Public content 1850. 2012-02-09T21:01:37Z. 2021-02-09T14:45:57Z. From the Land and Taxpaying office of Morris McHenry, Wm. Schuchman). English. Public. Iowa, Crawford County., and Crawford County (Iowa).