Author
Geological Survey (U.S.)
29
Iowa. Highway Research Board
7
Eash, David A.
5
Fischer, Edward E.
4
Iowa. Department of Natural Resources. Geological Survey Bureau
4
Iowa. Department of Transportation
4
United States. Administration on Aging
4
Buchmiller, Robert
3
Fulton, A. R. 1825-1891
3
Heinitz, Albert J.
3
Iowa. Department of Elder Affairs
3
Iowa. Department of Natural Resources
3
Karsten, Richard A.
3
Newhall, J. B. 1806-1849
3
United States. Congress. Senate. Committee on Appropriations. Subcommittee on Departments of Labor, Health and Human Services, Education, and Related Agencies
3
United States. Congress. Senate. Committee on Health, Education, Labor, and Pensions,
3
Bowman, Phillip R.
2
Burlington and Missouri River Railroad Company
2
Dodge, Augustus C. 1812-1883
2
Dubuque and Pacific Railroad Company
2
Forest Products Laboratory (U.S.)
2
High-Sense Geophysics Limited
2
Iowa. Census Board
2
Iowa. Highway Division
2
National Institute of Standards and Technology (U.S.)
2
Stutzman, Paul E.
2
United States. Army. Corps of Engineers
2
United States. Army. Corps of Engineers. Omaha District
2
United States. Congress. House. Committee on the Territories
2
United States. Congress. Senate. Committee on Agriculture, Nutrition, and Forestry
2
Abbe Center for Community Mental Health
1
Abel, Henry I.
1
Akers, Kimberlee K. B.
1
American Association for the Advancement of Science
1
Barnes, Kimberlee K.
1
Barrows, Willard, 1806-1868
1
Bishard, M. H.
1
Blanchard, Rufus, 1821-1904
1
Boyd, Robert A.
1
Brewer-Bonebright, Sarah, 1837-
1
Brown, Samuel, 1828-
1
Building and Fire Research Laboratory (U.S.)
1
Burke, W. S.
1
Burlington (Iowa)
1
Bushnell, Joseph Platt
1
Campbell, Thompson, 1811-1868
1
Carroll, George Ryerson
1
Cedar Rapids (Iowa)
1
Cedar Rapids and Missouri River Railroad Company
1
Center for Substance Abuse Treatment (U.S.)
1
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