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Author
- Shannon, C. W. (Charles William),1879-19344
- Shannon, M. E.4
- Baldwin, Mark (Soil surveyor)3
- Hole, Allen David,1866-19403
- Kelly, B. W. (Soil surveyor)3
- Roberts, W. A. (Soil surveyor)3
- Edmondson, J. B.1
- Geib, W. J. (Warren Jacob),1880-cartographer.1
- Mangum, A. W.1
- Neill, N. P. (Nelson Prentice)1
- Schroeder, Frank C.1