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Creator
- United States. Soil Conservation Service11
- Murphy, Brendan6
- Owen, Andrew6
- United States. General Land Office4
- Cram, George Franklin, 1841-19281
- Geological Survey (U.S.)1
- Levinson, David M1
- Miser, Hugh D. (Hugh Dinsmore), 1884-19691
- Oklahoma Geological Survey1
- Pressler, Chas. W1
- Rand McNally and Company1
- United States. Army. Department of the Missouri1
- United States. Bureau of Public Roads1
- United States. Bureau of the Census1