Cecil county
Maryland Geological Survey; Shattuck, George Burbank, 1869-; Bascom, F. (Florence), 1862-1945; Mathews, Edward Bennett, b. 1869; Dorsey, Clarence Wilbur, 1876-; Bonsteel, Jay A. (Jay Allan), 1873-; Fassig, Oliver Lanard, 1860-1936; Pressey, Henry Albert, 1873-; Bauer, L. A. (Louis Agricola), 1865-1932; Curran, Hugh M; Sudworth, George Bishop, 1862-; Geological Survey (U.S.); United States. Bureau of Soils