Geological Survey (U.S.), 81 Marshall, R. B. 1867-1949, 47 Geological Survey (U.S.) 43 Staack, J. G. 1878- 29 United States. Department of Health and Human Services. Office of Inspector General, 28 Marshall, R. B. 1867-1949 12 Missouri. Division of Geological Survey and Water Resources, 10 Social Science Program (U.S.) 10 U.S. Atomic Energy Commission. Raw Materials Operations 9 Colorado Natural Heritage Program 8 Trace, Robert Denny, 1917- 8 United States. Bureau of Land Management 7 Colorado State University. Cooperative Extension Service 6 National Center for Health Statistics (U.S.), 5 National Geodetic Information Center (U.S.) 5 United States. National Ocean Service 5 Utah Geological and Mineral Survey 5 Bell, Henry, 1923- 4 Doelling, Hellmut H., 1930- 4 Garner, Elizabeth (Demographer) 4 Sovell, John R. 4 Tripp, Bryce T. 4 U.S. Atomic Energy Commission. Colorado Raw Materials Office 4 United States. Department of Housing and Urban Development 4 Urban Institute 4 Bardill, John D. 3 EBSCOhost 3 Gannett, Samuel S. 1861-1939, 3 Illinois State Geological Survey, 3 Intermountain Research Station (Ogden, Utah) 3 U.S. Atomic Energy Commission. Division of Raw Materials 3 United States. Bureau of the Census 3 United States. Department of Housing and Urban Development. Office of Policy Development and Research 3 Anderson, David G. 2 Baker, Marcus, 1849-1903, 2 Birdseye, C. H. 1878-1941, 2 Brouillette, John R. 2 Colorado. State Demography Office 2 Cooperative Park Studies Unit (Moscow, Idaho). Visitor Services Project 2 Cramer, Marjorie A. 2 Dale, T. Nelson 1845-1937 2 Eckert, Jerry 2 Forist, Brian E., 1956- 2 Gannett, Henry, 1846-1914 2 Gannett, Samuel S. 1861-1939 2 Illinois State Geological Survey 2 Kentucky Geological Survey, 2 Mikelsons, Maris 2 Minnesota. Minerals Exploration Section 2 National Center for Education Statistics 2 New York (State). State Engineer and Surveyor, 2 Rogers, David L. 2 Russell, Israel C. 1852-1906 2 United States. Army. Corps of Topographical Engineers 2 United States. Department of Agriculture. Economic Research Service, 2 United States. Department of the Interior 2 United States. Forest Service. Southwestern Region 2 United States. National Park Service 2 Afghan Geological Survey, 1 Arthur Young & Company, 1 Assal, Timothy J. 1 Baker, Marcus, 1849-1903 1 Baldwin, David Henry, 1 Barney, Joshua, 1799 or 1800-1867 1 Barney, Richard J. 1 Bartlett, Richard A. 1 Becker, Samantha, 1 Bill & Melinda Gates Foundation, 1 Birdseye, C. H. 1878-1941 1 Bishop, Francis A. 1 Black, Robert C., III, 1914-2001 1 Boulder (Colo.). Open Space Department 1 Brasher, G. K. 1 Brooks, Alfred H. 1871-1924 1 Bush, Alfred Lerner, 1919- 1 Butler, Dwain K. 1 Buxton, Debra E. 1 CFI Group 1 Campbell, Marius R. 1858-1940 1 Canada. Department of the Interior 1 Canada. Department of the Interior. Topographical Surveys Branch 1 Capra, Alessandro, 1961- 1 Carlson, Andrea (Economist), 1 Carver, Priscilla R. 1 Casey, Brittany N., 1 Chirico, Pete, 1 Cohen, Alan B. 1 Cohen, Robin A., 1 Coleman-Jensen, Alisha, 1 Colorado State University. Department of Agricultural and Resource Economics 1 Colorado. Division of Wildlife 1 Coon, William F., 1 Coopersmith, Jared 1 Cornell University. Laboratory of Ornithology 1 Crescent City & Yreka Plank and Turnpike Road 1 Cross, Whitman, 1854-1949 1 Davis, W. E. 1905- 1 Denny, Jane F. 1 Denslow, Michael 1 Diller, J. S. 1850- 1