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- Iowa. Department of Natural Resources. Geological Survey Bureau10
- Geological Survey (U.S.)3
- Anderson, Raymond R.2
- Mills & Co., cartographer2
- Mulford, John C., cartographer2
- Chapman, Silas, cartographer1
- Colton, J. H. (Joseph Hutchins), 1800-1893, publisher1
- Dickson, Melzar M., cartographer1
- Dorheim, Fred H.1
- H.M. Gousha Company1
- H.M. Gousha Company, cartographer1
- Henn, Williams & Co., author1
- Hershey, H. Garland (Howard Garland), 1905-1
- Horick, Paul J.1
- Huebinger Publishing Co., publisher1
- Iowa Geological Survey1
- Iowa Publishing Co., cartographer1
- Johnson, A. J. (Alvin Jewett), 1827-1884, cartographer1
- Kenyon Company (Des Moines, Iowa)1
- Kenyon Printing & Mfg Co., cartographer, publisher1
