Geib, W. J. (Warren Jacob),1880-cartographer. and Schroeder, Frank C.
Detached from: Soil survey of Marion County, Indiana / W.J. Geib and Frank C. Schroeder. In 36th Annual report of Department of Geology and Natural Resources, Indiana. Scale approximately 1:63,360 Soils surveyed by W.J. Geib and Frank C. Schroeder, U.S. Bureau of Soils.