1952. Moran, W. H.(William H.), cartographer. January, 1952.; Black line print.; Traced from Map of Indiana, edition of 1950, published by U.S. Geological Survey. Minor revisions and additions ... Geological Survey.
1951. Moran, W. H.(William H.), cartographer. November, 1951.; Blue line print.; Traced from compilation proof sheets of new base map of Indiana, prepared by the U.S. Geological Survey. Minor a... Indiana Geological Survey.