Author
Geological Survey (U.S.)
71
United States Soil Conservation Service
34
Kentucky Geological Survey
30
United States Federal Emergency Management Agency
18
United States Bureau of the Census
13
United States Bureau of Labor Statistics
10
United States Bureau of Mines
9
Cressman, Earle Rupert, 1923-
8
Federal Financial Institutions Examination Council (U.S.)
8
Pennsylvania Comptroller-General's Office
8
Pennsylvania Bureau of Topographic and Geologic Survey
7
Kentucky Commission on Human Rights
6
Lancaster, Clay
6
MacQuown, William C., Jr (William Charles), 1915-2007
6
West Virginia Geological and Economic Survey
6
Hamburger, Robert, 1943-
5
Highland, J. D., 1923-
5
Kuehl, Ronald J
5
Murphy, James O
5
Pennsylvania Bureau of Mining and Reclamation
5
Black, Douglas F. B
4
Czech Heritage Society of Texas
4
Douglass, Ephraim, 1749?-1833
4
Fayette County (Pa.) Collector of Excise
4
Fayette County (Pa.) Treasurer
4
Hagan, A. M
4
Hennen, Ray V (Ray Vernon)
4
Hopwood, John, 1745-1802
4
Meeker, Ralph L (Ralph Lloye), 1918-
4
Moyer, Forrest Theodore, 1906-
4
Ohio Agricultural Research and Development Center
4
Ohio Division of Lands and Soil
4
Reed, Lloyd A
4
Smith, Thomas, 1789?-1866
4
Stump, Donald E
4
United States Bureau of Soils
4
United States National Park Service
4
United States Strategic Petroleum Reserve Office
4
University of Georgia College of Agriculture. Experiment Stations
4
West Virginia University Agricultural Experiment Station
4
Witt, Emitt C
4
Worsley, William W., 1780 or 1781-1852
4
Adams, Samuel
3
Alabama Department of Agriculture and Industries
3
America's Industrial Heritage Project
3
American Gas Association
3
Cleveland, Eli
3
Cornell-Tompkins County Committee for Free and Fair Elections in Fayette County, Tennessee
3
Davis, Christine E., 1945-
3
Dilissio, Lou
3
more ...